Doom Guy is such a nobody as far as Japan goes. It's a real point against him. I also can't help but feel the violence won't translate that well into Smash, and what's DOOM without ripping and tearing?
Leon was one of the spirits in the recent Resident Evil spirit event. I think he's as good as deconfirmed for this game.
There's no denying that Ninja Gaiden is one of the more famous NES games. Or infamous because of it's difficulty. So I could see that as a maybe. We'll have to see if Sakurai can see a moveset worth making with Ryu. Although we'll have another Roy and Roy situation if that happened.
@Dcubed was expecting Dante here, but I guess he was wrong for now. But with Devil May Cry getting a recent surge of popularity and the games coming to Switch, it's not too mad for it to happen in the future. Although, if a different Capcom character gets in the second pass, his hopes are dead.
It's honestly weird when it comes to Geno, there are so many other well-known characters from the Mario series. Hell even Wart has the recent Link's Awakening remake for relevancy. Geno has one SNES game and a cameo apperance in a GBA one. And yet, he has a very vocal fanbase. It is suspicious that the Mii Costume from Smash 4 is still missing from Smash Ultimate, though.
Master Chief has absolutely no prescence on Nintendo Consoles. Everyone in Smash has had some before they got in so far, even Joker. Unless we get a sudden Halo game on Switch, I don't see it happening.
Steve on the other hand all depends on whether the Microsoft partnership is continuing in Smash, because that's the obvious 2nd Microsoft character. Even if I think Minecraft is one of those series that'd be better represented by a stage than a character.
Sora is a weird one as well, he's a video game character that has had plenty of Nintendo games (Chain of Memories, 358/2 days and Dream Drop Distance were all released on Ninty console games first. In fact, Chain of Memories is Cloud's Nintendo console debut). But he's from a series where most of the characters are not video game related. It's bizarre, I don't think Disney is gonna let Smash have Donald and Goofy, even if it was just a Final Smash cameo. And that's even if Sakurai would want Disney characters that aren't Sora blurring the line between video games and everything else. Awkward character for sure, so I'm not expecting much there. He'd be worth it for the gorgeous music Kingdom Hearts has and just for the novelty of seeing a Disney copyright on the title screen.
Anyway, those are my thoughts.
As for what I'm hoping for. I want Toxtricity, best Pokemon in Sword/Shield and I want to fight as a punk rock poison lizard.
I also hope that Phoenix Wright is the Capcom rep, he was great in Marvel Vs Capcom and his cartoony look works well in Smash, also finger point attacks and document throwing is always funny.
And I'm still gonna continue dreaming for Dillon. I know he's an assist trophy from a niche 3DS series, but I'll forever dream.
There's also plenty of material for Paper Mario to really stand out from the other Mario characters. Partner attacks, hammers, paper folding shenanigans, don't even need a new stage for him.
Lloyd Irving would be the Namco rep I'd want, Namco deserve a second character after all the work they put helping to make this game, and @Ugh first aid really wants him. He's the Tales of character who is most well known and if this second pass is gonna have another swordsman, it might as well be the guy with two of them. Should fill out that quota. His Smash 4 Mii costume is also suspiciously absent.