Ezio/Connor, yeah yeah, he is 3rd party, but there is a clue that pointed out to AC. And since it has the same chance as Big daddy to come in the game, why not. His fanbase is very big and would attract millions. 1million x $60 (exacly). Bioshock got his get closer with Sony last year E3 with ps vita exclusive. Now with AC having the same with the PS3 version exclusive content and with PS vita (again).
Rayman- another ubisoft character who has pretty big in PS franchise. I didn't like his game, but he would be perfect.
Crash, Spyro bla bla bla bla
Snake - personally i would prefer any other costume that make him differently from Brawl's.
Tomba - don't know him, but his been asked a lot.
Cloud or lighting, whaterver. I don't care which one, just FF rep plz.
Sora- aw i prefer him to no be because i hate disney, and disney might be harder than activision because of cruel violence of dante and kratos, but we will see since they love to make dumb made money.
Wander/Ico - same as tomba i guess
Ty,Gex,Croc- They look ok till there little less likely to appear since rayman, crash, spyro are fighting thos PS1 spots.
So that it. I also want to point out, when i got to wikia poll, which character you liked most, i saw sir daniel was winning. Kratos was the less like, it should be the way around lol. Aren't any mature rated gamers looking at forums. Are they interested in this game. I'm sorry but Mature has more sells to present day, shouldn't Kratos be higher than Fat princess LOL?