Pandemic and LucasArts have two games in development together! In addition to the already announced Star Wars Battlefront, Pandemic is working on a second non-Star Wars title for LEC, called Mercenaries, for XBox.
A different sounding title for LucasArts, Mercenaries is set in a near-future war-torn North Korea. Four groups, the North Koreans, the Chinese, the United Nations, and Russian crime syndicates are all vying for superiority in the battle, and you must chose who to fight for. However, in an interesting twist, since you're a mercenary (hence the title), you can apparently switch sides over the course of the war whenever you please.
More information coming soon, when LucasArts actually officially announces the game. Thanks to reader Trunks for pointing this out. For more info check out this page at 1up.com.
Update: As amishler pointed out in the comments, and LEC's Ronda Scott just confirmed, Mercenaries is the mystery game formerly known as "Free Agent."