Microsoft has officially confirmed that this weekend's unbelievably sketchy reveal trailer is actually right on the money. Forza Horizon is indeed in development by Playground Games: an upstart UK outfit staffed by Codemasters, Black Rock and Bizarre Creations veterans. While details are still thin on the ground, multiple visitors to the recent Microsoft Spring Showcase report that the new project is designed to be an instantly accessible racer, possibly with a more open structure than the previous games (resembling Test Drive Unlimited in terms of freedom and exploration). Interestingly, Microsoft plans to annualise the franchise using these side projects to augment Turn 10's major releases.
CVG reports that Forza 4 will be receiving new DLC in May, which will will bolt 30 Porsche cars, 20 world tour events and ten Achievements onto the already-heaving package. A level cap increase is also slated for March via title update.