Here are my character predictions for MKS, I know at least one will make into the game, maybe all of them i dont know
King Boo: You know it would be awesome, we have E. Gadd with his own Boo Showdown Attack, where is King Boo?
Hammer Bros: They are important enemies since Super Mario Bros, so if Koopa is in it, why nit them?
Goomba: Speaking of important enemies
Geno: It would be cool to have it in MKS
Rosalina: Another Female character is always nice
Daisy: Clone of Peach or not clone, she is very important to the franchise cause...she...uh...I dont know
Dry Bowser or Black Bowser (As a costume or character): Okay Dry Bowser or Dark Bowser would be awesome, it could be a clone of Bowser but stronger and slower, and other Showdown Attack of turning giant or something
Nabbit: He isnt that important but come on! He would fit perfectly on the game
Shy Guy: Its freakin Shy Guy
King Bomb: We got *SPOILERS* Petey, why not King Bomb, he is awesome, and he got a cool Moustache :3