Halo 3 no more - meet Forerunner
 

According to the post, Bungie's next project will be a Halo game for the Xbox 360, currently codenamed, Forerunner. In Halo lore, the Forerunners are a technologically advanced race that mysteriously vanished from the universe.

The source reports that the game will feature "huge persistent worlds" using a modified Halo 2 engine. The main campaign will still feature Master Chief and will showcase 4-player co-op. The missions, however, will not be linear, nor will objectives been required. For example, if players are tasked with capturing a weapons depot, but decide to forego the assignment, then they will loose the opportunity to seize the additional weaponry and, in effect, will hand these weapons over to the enemy.

http://www.joystiq.com/2006/03/16/ha...et-forerunner/

Halo 3 will be the game's title after all it seems