Okay, I just noticed something. Bandana Dee may be confirmed! This is grasping for straws, but it could possibly be true!
This is the starting roster:
Franchises with Multiple Reps (counting leaks):
Mario, Donkey Kong, Legend of Zelda, Metroid, Kid Icarus, Fire Emblem, Kirby, Star Fox, and Pokemon.
Mario: Unlockable Bowser Jr. and Wario
Donkey Kong: Unlockable King K Rool (if confirmed)
Legend of Zelda: Unlockable Ganondorf
Metroid: Unlockable Ridley (if confirmed)
Kid Icarus: Unlockable Dark Pit
Fire Emblem: Unlockable Lucina
Star Fox: Unlockable Falco
Pokemon: Unlockable Jigglypuff
---
If you count the two most requested and wanted characters in the West as being playable, King K. Rool and Ridley, then every franchise that already has multiple representatives has an unlockable character in this game. The only franchise NOT shown in leaks/official reveals to have an unlockable character is the Kirby series. This is odd - every franchise with multiple representing characters has an unlockable character except Kirby? It wouldn't make any sense. For this reason, I think we may have a confirmation of a fourth Kirby representing character. While this is purely grasping at straws, as neither King K. Rool or Ridley have been confirmed, they're the two most requested characters in the West, and Sakurai's team has clearly been listening, hence Little Mac being in the game.
BANDANA DEE MAY BE IN THE GAME!