Microsoft have announced that the People Can Fly (Bulletstorm) developed prequel to the Gears of War trilogy - Gears of War: Judgment - is due for release on March 19, 2013. The game is set during the aftermath of E-day, when the Locust first came out of hiding and sees Baird starring as the main character. The game also features a new multiplayer mode called OverRun, that blends elements from the popular Horde and Beast modes of previous titles.
The game is obviously exclusively coming out on Xbox 360.