Avengers: Battle for Earth is officially happening, Ubisoft confirmed today. About a week ago, folks were noticing the publisher had reserved a domain for the game, and some early footage was leaked (then quickly removed).
Not surprisingly, the Avengers game turned out to be real, and Marvel could not have timed it better given the success of their recent Avengers movie. Interestingly enough, the game will be a Kinect and Wii U motion title, though the PS3 and its Move peripheral is absent from the list of supported platforms.
Battle for Earth is supposed to be (probably loosely) based on the "Secret Invasion" storyline, and Ubisoft Quebec is drawing inspiration from the comic artwork. Expect to find it this fall.