I will know give my brief thoughts on all the contestants and they're likelihood of advancing. Keep in mind that I do not know the spoilers, so I am trying to just go with my intuition and knowledge of the acts. Also a lot of it heavily depends on their competition in each of the six weeks, but I will try my best.
Aidan Bryant: He is a solid aerialist, but I do wonder if he will get lost in the shuffle, no matter how good he performs. Depends on his competition. Could advance, but likely eliminated.
Aidan McCann: I do not really remember his performances, so I cannot say 100%. Unsure, but likely eliminated.
Alan Silva: It's really a toss-up between which aerialist will make it big, but my gut is telling me that Alan will do well. Potential Top 11 Finalist, Possible Golden Buzzer.
Ana Maria Margean: Again, haven't seen her performances, but it's gonna be really hard to beat the GOAT (Terry Fator) at the ventriloquism game. Unsure, but likely eliminated.
Aneeshwar Kunchala: Well he is a kid, so any luck of him getting buzzed is thrown out the window. He could get some "cute" cred, but I do not see him advancing. Likely eliminated.
Archie Williams: Could his story win out? Quite possibly, but he is a pretty decent singer. Then again, that is also his biggest downfall. Could advance, possible Golden Buzzer.
Avery Dixon: A fan-favourite from last year, he could do extremely well if he plays his cards right. I feel like he is the "little act that could" and can win a lot of the Superfans over. Possible winner, Possible Golden Buzzer.
Axel Blake: Again kinda missed out/don't remember his performances, but there are a lot of comedians this year. Not sure/could advance.
Bello Sisters: Technically, they are exceptional acrobats. They would have to do something completely remarkable to advance, and it heavily depends on their competition, but they could be dark horses. Could advance, possible Golden Buzzer.
Berywam: They are technically great, but will their talent be "lost in the shuffle" or could the judges not really appreciate them? Could advance, but likely eliminated.
Bir Khalsa: Among some of the most exciting, dangerous hooligans ever. They SHOULD advance, but I think the judges will find them "too dangerous", for lack of better word. Could advance, but likely eliminated.
Brandon Leake: A unique act for sure, but could just saying words make him advance again? I think his win could be a fluke, Simon has never seen him perform live before and could buzz. Possible buzz from Simon (but I wouldn't bet on it). Could advance, but likely eliminated.
Brett Loudermilk: Another act cursed by the danger bias. Possible buzz. Likely eliminated.
Calysta Bevier: She is a terrific singer, but I am not sure if she has really a big "it factor" or a unique enough voice to advance, but still don't sleep on her. Could advance, possible GB (but I don't think so), but likely eliminated.
Captain Ruin: It's awesome that he is getting another chance after withdrawing from Australia's Got Talent, but again danger bias. We'll see. Could advance, but likely eliminated.
Cristina Rae: She is among the better singers this All-Stars season, and I could easily see her advance. Possible winner, possible Golden Buzzer.
Dance Town Family: An atypical choice, but the lack of dance groups could prove advantageous. Still wouldn't bet on it. Likely eliminated.
Daneliya Tuleshova: I don't really understand her voice, but the judges love her. Could go either way with the Superfans though. Could advance, possible Golden Buzzer, but likely eliminated.
Darius Mabda: I do not know enough about this act to form a consensus. Unsure
Detroit Youth Choir: Without the safety net of their home city voting, I do not know how well they will do in the voting, unless the Superfans happen to be from the Motor city. Could advance, but likely eliminated.
Divyansh & Manuraj: Again I haven't seen them, but I have a feeling that Simon may not be swayed by them. His flautist hatred might reign supreme. Possible buzz from Simon, likely eliminated.
Dustin Tavella: Let's be honest, he is more of a storyteller than a magician. No disrespect towards him, good for him for winning AGT, but there are more "show-y" magicians participating this year. Could go either way, but I am thinking he'll be eliminated.
Dustin's Dojo: The first ever Golden Buzzer. I think that Simon will not get it, and Howie will love it. Good for them, but I think they are toast. Possible buzz from Simon, likely eliminated.
Emil and Dariel: Much like Avery, this is another instrumentalist act that I think could appeal heavily to the Superfans. I think they will do very well. Possible Top 11 finalist, possible winner but I wouldn't bet on it.
Eric Chien: Shin Lim, Jr., I would argue he is better than him. He is in my mind the magician to beat this year. Possible Top 11 finalist, possible Golden Buzzer.
Flau'jae: Another act who is technically terrific, but I am not sure if the Superfans will get behind her. Could advance, but likely eliminated.
Human Fountains: Uh.... right. They are fodder. I do not see them advancing unless everyone else in their group gets polio. Definitely buzz from Simon, definitely eliminated.
Jackie Fabulous: IMO, one of the funniest female comics AGT ever had. Could make it, but sadly the competition from other comics is strong. Not sure if she'll stand out. Could advance, likely eliminated.
Jamie Leahey: He is good, but again when you are up against someone like Terry Fator, you likely will just pale in comparison to him. Depends on his competition. Could advance, but likely eliminated.
Jasper Cherry: I do not really remember him. Unsure.
Jeanick Fournier: I compared her to Susan Boyle, and I am happy that CGT got some rep. She could be the singer to beat, but it could go either way. Could advance, but likely eliminated.
Jimmie Herrod: Out of all the singers this year (besides Kodi), I think Jimmie is the one that everyone should watch out for. If any singer is gonna win, it'll be him. Possible winner, probably Top 11 finalist, possible Golden Buzzer.
Josh Blue: A really solid comedian, I think a lot of the voters will get behind him. I hope his material's great! Possible Top 11 finalist.
Keiichi Iwasaki: A magician that definitely deserved to do better on BGT than he did. I wish him the best of luck, but I am not sure if he'll do enough to stand out. Could advance, but likely eliminated.
Keren Montero: Don't know enough about her. Unsure.
Kodi Lee: Another extremely solid potential winner here. He is gonna have to suck pretty bad or have extremely bad luck with the Superfans to not advance. Possible winner, possible Golden Buzzer
Light Balance Kids: I love these kinds of multimedia acts, and they could do really well, but it could also be a crap shoot too. Could go either way, but I think won't advance.
Lioz Shem Tov: Definitely among my favourites of the contestants chosen. He is extremely great, but Heidi never liked him and will have to pull something super memorable off to be in consideration. Buzz from Heidi. Could advance, but likely eliminated.
Lukas & Falco: The only animal act could help them out, but I think Howie doesn't really like them. Could go either way. Buzz from Howie. Could advance, but likely eliminated.
Malevo: They are extremely unique, extremely memorable, and I think have a good chance of getting voted in by the Superfans. Again depends on their competition. Potential Top 11 finalist.
Mandy Harvey: Another terrific singer. Is she "unique" enough? I don't know, but again I wouldn't sleep on her. Potential Top 11 finalist.
Mervant Vera: He almost made the Finale last year, and he is probably going to do as well as he always does, but will he be "unique" enough to get votes? Could advance, but likely eliminated.
Mike E. Winfield: Great comic, stiff competition. It depends on his competition and material. Could advance, but likely eliminated.
Mini Droids: Do not know enough about them, but them being one of the few dance groups could prove beneficial. Unsure.
Ndlovu Youth Choir: Definitely my favourite choir in the competition. If they absolutely SLAY, then I think they are potential underdogs. Potential Top 11 finalist, possible Golden Buzzer
Peter Antoniou: He kinda crapped the bed at the Semis a few years ago, so I hope he does better, but again it depends on how the Superfans feel and his competition. Could advance, but likely eliminated.
Peter Rosalita: How old is he? Has he started puberty yet? Could that affect his chances? I am not sure. Could go either way. Could advance, but likely eliminated.
Power Duo: These guys did exceptional on Asia/Philippines' Got Talent, and if they do just as well here, I could see them scoring well with the Superfans. Potential Top 11 finalist, Possible Golden Buzzer, Possible Winner
Robert Finley: He is great, and I am glad he was chosen, but again there are A LOT of singers. Is he memorable enough? Could advance, but likely eliminated.
The Sacred Riana: This could go either way. I am not sure how big on horror the Superfans are, and I think the judges could be very mixed on the performance. Possible buzz from Simon. Could advance, but likely eliminated.
Sara James: Another singer that could do well depending on her performances. We'll see. Potential Top 11 finalist.
Sethward: Unless Howie does an off-the-wall joke Golden Buzzer for him, then as much as people will hate for me to say this, I do not think he has a shell of a chance. Very very very VERY unlikely GB from Howie, but otherwise eliminated. Buzz from Simon.
Terry Fator: Another act that is in my mind damn near untouchable, unless something ridiculous happens. Possible winner, possible Golden Buzzer
Tom Ball: One of my favourite singers from recent memory. I think he could break through depending on his competition. Possible Top 11 finalist
Tone the Chiefrocca: Will he sing B-O-O-T-Y? If so, then good on him for being consistent, but I don't think it'll be enough. Buzz from Simon. Likely eliminated.
Vitoria Bueno: While I am not familiar with her, her having no arms looks very intriguing. Could have a good story about overcoming adversity that'll resonate with Superfans. Possible Top 11 finalist, Possible Golden Buzzer
Viviana Rossi: This one is a big question mark for me. She could do well, but will her not being among the live show finalists be the death knell for her for the Superfans? Could advance, but likely eliminated.
Voices of Hope Children's Choir: Could do well, but I think will be overshadowed by better choirs. Likely eliminated.
World Taekwondo Demonstration Team: Yeah, they always know how to do a show, and I think they have the potential to do extremely well here. Potential Top 11 finalist, Possible Golden Buzzer, Possible Winner
Yumbo Dump: They are silly, but I think it depends on the sounds they make. Potential buzz-out? Likely eliminated.