A while back a teaser trailer came out that emphasized the creation of the idea for the film more than the film footage itself. It was a great teaser, but if you were hoping for a lot more from this new trailer for Wall-E I'm afraid you're going to be disappointed. While it does have a cute riff on the standard Pixar opening logo, there is only one new scene in the trailer.
It's good... it's just not very much.
Wall-E opens Summer 2008.