From computerandvideogames.com: Microsoft's Shane Kim may have accidentally dropped more info on Peter Jackon's mysterious Halo project, which he's referred to as the Halo "animated series". When asked if Bungie already has a post-Halo 3 project in line, the Microsoft Game Studios boss told GameSpy: "Oh yeah. Bungie has their plans well mapped out. You have to, when you have a studio like that, and you need to know what you're moving your people on to. So they have the collaboration with Peter Jackson on the animated series. "I'm not sure about the specifics. They'll be done with Halo 3 this year, but we haven't announced any dates on the Halo 3 series." [More]

Xoanon here, I will be trying to get independent confirmation from the man himself later today!