Out early 2012.
UPDATE: The official UFC Undisputed 3 website is now live, and brings new details on the game. They are below.
“UFC Undisputed 3, takes you inside the Octagon, delivering intense UFC action focused on brutal toe-to-toe combat, impressive visual presentation, increased accessibility and raw fight emotion.
“UFC Undisputed 3 ups the intensity with the addition of PRIDE Mode, a brand new submission system, new ways to finish the fight and increased accessibility through both traditional and simplified gameplay controls that, along with significanlt enhanced visuals, new camera positions and personalized fighter entrances, let you step right inside the Octagon.