User blog comment:GuyWithTheCoolName/Smash 4 Roster Prediction/@comment-4115159-20140714003818/@comment-32390199-20140714013337

Wouldn't it be awesome if Mario, Zelda and Pokémon all had 6 reps?

Bowser Jr. for Mario, Ghirahim for Zelda (now that he also has appears in HW) and Mewtwo for Pokémon.