YAAAAHOOOOO!!!!!!!!!!
I was just in another forum discussing when this game might go gold! Can't wait to play it again but more importantly we'll have awesome super wrong(yet fun) rumors about Smash as well as little tidbits from Sakurai from time to time.
I think they could very well have a CG trailer ready for E3. No gameplay just some kind of teaser trailer showing a few new characters and some new concept behind the game.