Gears of War 3’s downloadable content has yet to be revealed, but Microsoft knows you want it, and is already letting you preorder it. The Gears of
War 3 Season Pass hooks players up with the first four DLC packs as they become available. The first is scheduled for November, and the next three are scheduled to release “over the course of the next year”. Epic stated that the packs would contain both multiplayer and campaign content, but has yet to go into specifics about them.
As seen on IGN.COM