I would love for 8-bit Zelda and Metroid to get this treatment. Those games are much more complicated than a Mario level as far as design, but if they could perfect the database to where the game would show you that something couldn't be successfully completed because certain items weren't yet placed accordingly, that would be awesome.
I really hope that Mario Maker catches on and does well. When I first heard about it I though it sounded kinda cool, but after actually seeing the treehouse videos at E3 I was sold. It could have the best potential to sell a game (or hopefully, a series of games) to the mass-market with possibly the most intuitive use of the Gamepad so far.







