There are several big Star Wars games rumored to be in production including Knights of the Old Republic III and Battlefront III so it'll be interesting to see if the announcement is for one of those or another game (who knows maybe a new Rogue Squadron).
http://geoffmk.gametrailers.com/gamepad/
"I also want to give you faithful blog readers a little tidbit about our next show on April 11: It's all about STAR WARS! Last week I went up to LucasArts for an exclusive behind the scenes look at the new game THE FORCE UNLEASHED. We'll be blowing it out on GTTV with a ton of exclusive footage and some very special announcements. Spike is airing all six Star Wars movies in April and throughout the month I'll also be appearing between the movies on Spike to reveal more of THE FORCE UNLEASHED. You'll want to tune in on Sunday April 6 between the movies for a big Star Wars videogame announcement and some very exclusive footage."







