I've seen a few people making character predictions so I'll make one too! Please comment!!!!
- means character is unlockable
Vaati(Replacement for Toon Link)*
Samus/Zero Suit Samus
Dark Samus(Need more Metroid characters)*
Krystal(Think she deserves a chance)
Zoroak(Replacement for Jigglypuff)*
Knuckle Joe(Should have been playable in last one)*
Tiny Kong(Was going to have Dixie Kong but thought she would be too similiar to Diddy Kong)*
Lyn(She should have been playable in Brawl)
Roy(Time to bring him back)*
Rosalina(Replacement for Olimar, uses Lumas to fight instead of Pikmin)*
Tom Nook(We really need a playable AC character)*
Shadow(Should have been playabe in Brawl)*
Baby Mario Bros.(Fight sort of like Ice Climbers)
Kamek(Need more Yoshi characters)*
Waluigi(In Wario universe, Not Mario)*
Tabuu(He'll be the hardest character to unlock)*
Game and Watch*
Ryu(Need Capcom characters)
Ken Masters(Same as Ryu)*
Chun-Li(Same as Ryu)*
Miis(You can customize there moveset)
Characters who almost got on my roster
Ridley-Replaced with Dark Samus.
Toad and Toadette: Thought they were a combination but then thought that the Baby Bros. were better.
Silver-Not in enough games to be in a game like this.
Pauline-Replaced with Daisy
Olimar-Replaced with Rosalina
Amy-No major reason just changed my mind about her.
Buddy(From Mysims)- Later thought that an EA character wouldn't be a good fit for a SSB game.