Being a nerd, while I am very accustomed to being let down by films on a regular basis, a new Tron movie would be cool, yo. Tron was the sort of crazy sci-fi nonsense I grew up on. Disney made a go at it for awhile - before Tron there was 1979's awfully good The Black Hole and after 1986's awfully awful Flight of the Navigator. A side note: I also like it when everything looks like it's been washed in a some sort of futuristic black light that doesn't make your skin and teeth look weird.
But now, back to 2010, where today we can't possibly imagine making a movie that hasn't previously been made in some form or another.