Honestly, I don't like any of those designs. They're not much differant in looks then the original Music Star's, And the only differance they might have would be new charecters? I'm not wasting my money.
It's not just new characters, it'll be new games, new genres of music, types of skill points, and your concerts will be worldwide instead of just TamaTown. and the souvenir secion of the V4 and V5 comes back.