(Please keep in mind that this is a rumor and should be treated as such)
Since Lucasarts (LA) decided to drop Star Wars Battlefront 2 (SWBF2) developer Pandemic for New Radical a lot has been written and predicted about the sequel of the game (currently known as SWBF3).
Star Wars Battlefront 2 has been Lucasarts best-selling Star Wars title and the company certainly doesn’t want to take any chances with it. So far LA has only confirmed its intention to continue the series without giving out any further details.
As many people pointed out the reason SWBF2 became a best seller was the game’s availability to many different platforms. Whether Microsoft paid “big bucks” to keep SWBF3 an Xbox 360 exclusive or not, remains to be seen.