New Super Mario Bros. 2

[Phantom Killah]

EDIT- You also have to consider that one of the first things they said about it is that they plan on rethinking the Mario platformer with it, so they obviously have something in mind that they aren't showing.

When did they say this? If it was a long time ago, then... maybe they've changed their minds? Because everything they've shown of this game so far (which is admittedly little) seems to suggest the exact opposite.