In something of a surprise move, Titanfall has been delayed on Xbox 360. The Xbox One and PC versions of the game will still release on March 11th.
As you may know, Titanfall is being developed by a different studio on Xbox 360. Bluepoint are the studio responsible for the version, whereas Respawn are obviously handling the game on PC and Xbox One.
Bluepoint apparently need a bit more time to polish and tweak the game, so the Xbox 360 version of Titanfall is now being released on March 25 in North America and March 28th in Europe.