With ANTi struggling so much against Puppeh, I don't think it bodes well for his set against VoiD. I don't see VoiD struggling against either WaDi or Mr. E tbh, so he probably has the safest path to Top 8 among anybody in the Top 32 right now.
If not him, I think Nairo is pretty safe. Komorikiri has only beaten him in exhibition and crews (and barely, at that.) He's lost to both his ZSS (convincingly) and his Lucina. Nairo's worst losses overall are probably Dire and Mr. II, so I don't expect him to get upset by Cosmos. Could happen but probably not.
Now, that does assume Komo beats Ri-ma. Komo has looked a little shaky - nearly dropping games to Seagull and Sodrek - but he's the favorite going in. He's had a similar result vs. Ri-ma before (1 clear win, 1 shaky, near-loss for a 2-0) back in July. I think it might have to do with how he plays to download his opponents since he also dropped a lot of individual games in pools at Aba Saga but went on to take down Ally and Ito.
I could see things going into a total tailspin if Ri-ma takes Komo down because there's absolutely no way of knowing how Ri-ma vs. Nairo would turn out. Hyuga and Nairo traded sets and the last time they met before Hyuga's forced retirement resulted in Hyuga > Nairo, 2-1. I assume these will be Bo5 sets, so that gives Nairo longer to adapt, but Ri-ma has demonstrated a lot this weekend.
Easy prediction for bracket A is Nairo vs. VoiD runback in Winner's Semis but a lot of things can get out of control. E.g; If WaDi beats Mr. E and ANTi takes VoiD down, WaDi in Winner's Side top 8 is entirely possible since he's a Mario slayer and has taken down ANTi before.
Winners Semis:
Hope: WaDi vs. Ri-ma
Most likely answer: VoiD vs. Nairo
The B-side of Winner's is completely insane, though. Mr. R, ZeRo, Dabuz, Salem, Abadango, and Kamemushi are all Top 8 Winners Side contenders. Conventional wisdom suggests it's going to be ZeRo vs. Salem in Winners Semis, but Mr. R could beat ZeRo, could be beaten by Abadango, etc. If Mr. R loses to Abadango, ZeRo will assuredly make Top 8 Winners Side since Aba's record vs. ZeRo is straight trash, but Mr. R vs. ZeRo is an intense matchup that could go either way.
Oh, and Tweek's there too, but I don't expect much from that.
Dabuz vs. Salem can go either way. A panic Olimar pick may be something Salem will fish for, as (it's been pointed out) he's the best at abusing Witch Time, and Olimar just gives Bayo all the opportunities in the world to do it. If Salem takes down Dabuz's Rosalina and he panic-modes into Olimar, I'd call for Salem to take it. I'm not sure if it's Bo3 or Bo5. If it's the latter, I can't count Salem out even if Dabuz wins G1 since Salem is extremely good at downloading players and clutching.
Kameme vs. either is equally unpredictable. Kameme had 2 UNFORTUNATE SDS from a winning position vs. Dabuz at SAT that dictated who got what stages, but it was a close 2-3 set. Salem could go either way. Salem beat him 2-0 in two narrow games (both appeared to be playing seriously even though it was a local) and Kameme has incredible SDI, but Salem separates himself from other Bayos by being REALLY GOOD at covering SDI. Kameme seemed to mostly have Salem's number in crews.
Hope: Abadango vs. Kameme
Most likely answer: ZeRo vs. Salem
Random Loser's Bracket stuff:
-Ally has a hell of a bracket ahead of him to contend with.
-Mew2King is probably doomed to 25th place. He's 0-2 against Zack in sets now. I could see him dropping out to focus on Melee, actually, because he'd need to dedicate a lot to contending with that Losers Bracket. Like, even if he beats Zack, he could have to contend with either Dabuz or Salem, then probably Ally, then whoever loses Nairo vs. Komo, etc. He'd need to run a massive gauntlet that just gets harder the longer it goes on. He might try his hand against Zack and see where it goes of he wins but he's likely going to fall at some point.
-With Larry losing to Zack at Abadango Saga, I could see Saj pulling an upset. Saj is known for his loser's bracket runs.
-Kie vs. Rich is something I hope is periscoped. No way of knowing where it goes. Funny thing is, it's actually possible we might eventually see an Aba/Rich runback to see which gets into Top 8. Depends on brackets and relies on Aba beat Mr. R then losing to ZeRo and Rich beaten Kie, ANTi, and probably either Mr. E or WaDi though.
-There are a couple of other runbacks. Samsora vs. Fatality (Samsora 2-0'd fatality) and MVD vs. Rayquaza (Rayquaza 2-0'd MVD). I don't think these are very consequential since none of those players stand a good chance of making it far in Losers when top players start dropping in, but it's worth mentioning. Ray upsetting Ri-ma or Komo isn't out of the question. I mean, if Xaltis can beat ANTI.... <_<
I just stuck to analysis here instead of raw predictions. I'll probably provide a brief analysis of top 8 before it starts, but my opinion of who wins hinges a lot on very specific things, like Dabuz vs. Salem, Kameme vs. the winner of that set, the winner of VoiD vs. Nairo, etc. We could see Kameme > Marss, Salem/Dabuz, ZeRo, VoiD to get into GFs, but that becomes less likely if Nairo beats VoiD, or if ZeRo has trained in the Mega Man matchup, etc. That's just one example. Craziest but totally plausible path (as I mentioned) is Ri-ma getting into Winners Finals by beating Komo, Nairo, and VoiD (the latter having had trouble in the MU before) but it's not very likely.