Note, Sakurai said there will be no difference in rosters.McMarbles said:Gone: R.O.B., Ike, Lucas, Wolf, Lucario, Toon Link, Snake (probably)
In: Krystal, Palutena, Little Mac, Chrom, Dillon, Pac-Man
Maybe platform-specific? Shulk (WiiU), Isaac (3DS)
There's a chance: Takamaru, Saki, Starfy, Heracles, Patty Wagon
Also, I noticed some stages they showed off were a boxing ring and the arena from FE: Awakening. This might hint towards Little Mac and Chrom.
P.S. Wii Fit Trainer is hilarious. It's like they put her in to troll people