The Kinect support that is included with the game is an option that players will have the ability to choose to use or not to use. So, this confirms that Forza 4 (when it arrives in the fall of 2011) will be a hybrid title that offers optional Kinect support. It is expected that the title will be offered in both a standard and Limited Edition just as Forza 3 was.
Microsoft and Turn 10 are not yet talking about what will be included with Forza 4, but they expect it to be the ultimate automotive experience that puts the player into the game. While rumors continue of a dubbed down racing experience from Turn 10 that will be exclusive to Kinect, sources tell us that this project (if there ever was one) has been killed off in favor of incorporating this into Forza 4 as one title offering.