Personally i'd like to see a lot more sets based on the EU, especially as we're nearing the end of the license; i think LEGO should try to cover as much of the Star Wars universe as possible before 2011.
Maybe an Ebon Hawk in the same vein as the 4504 Milenium Falcon and a Sith Interceptor from the KOTOR era?
Especially seeing as how there's the KOTOR MMORPG on the horizon (what an acronym, eh? )
I think it would be nice if they filled in some of the major gaps in the minifig back-catalogue; a new Padme would be nice for starters.