Ok here goes!
360 - 15M - 2012 will be 360's biggest year proppeled by Kinect. Next fall MS will release a new edition of the Xbox with Kinect, new price, new dashboard and will be sold as a media hub for the family. Will be mostly popular in USA but will get some attention in EU.
PS3 - 12M - PS3 will get another price cut to counter the Wii U and new 360 but will fail to get attention in the US, will sell greatly in EU and Asia like usual.
Wii - 8M - People will start to get away from the Wii as Kinect and Wii U will get the most advertizing in America.
200k boost for 360 at the release of Star Wars Kinect.