Most of mine are improbable, but they'd make me uber happy.
1. Knuckles. Yeah, I said it. Imo, he's 7959794507450x better than sone AND shadow together. If he's in it in any way shape or form, i will be happy... and Sakura might have slipped a little hint of his appearance in when he mentioned knuckles in the description of Angel Island Zone music
2. King K.Rool. Now, he might seem probable, but K.Rool is a rare only character. rare + nintendo= gone, so i believe k.rool= gone, although he IS on the charcter poll list.
3. Viewtiful Joe. I think he will be a 3rd party character, no doubt. he's perfect in EVERY WAY possible for this game, and he was on gamecube. And Sakurai said he hasn't spoken to Capcom yet, so megaman 's probably not in
4. Banjo&Kazooie. This would be awesome. very improbable, but awesome. Same reasons for K.Rool that he won't be, especially with his Xbox game coming out. would love to see it though.
5.Had Luigi here, but changing it, hes pretty much confirmed. Sora. Completely forgot about him. Oh btw, if you haven't noticed, there is a designer from each company that has a character. Rare? got it. Sega? its there. The one designer without a character to his name, the designer that worked on Kingdom Hearts.