The only games I expect to be possibly announced are Battlefront 3 and a Clone Wars game for Xbox 360 and PS3. For Battlefront 3, it depends if LucasArts just completely scrapped what was already done or if they took it to another developer. There are rumors
of a clone wars game called Republic Heroes in development by Krome Studios, the same makers of the other terrible Clone Wars game for Wii and Force Unleashed for Wii. It'd be great to see something completely unexpected, but I think from what we know about LucasArts recently, it's unlikely.
Even though I'm not a huge Battlefront guy, I hope they do announce the game. It'd be hard to mess it up and it'd be good to see something people actually want for next gen systems (and hopefully PC too).