I didn't spot a link to this, so posting one here:
www.fantasyflightgames.com/edge_news.asp
Fantasy Flight Games is proud to announce Black Crusade, the fourth standalone RPG in our popular Warhammer 40,000 Roleplay line! This remarkable experience offers players a new perspective on the conflict between the Imperium of Man and the forces of Chaos by delivering the unprecedented opportunity to play as a Disciple of the Dark Gods, whether as a Chaos Space Marine or a human Servant of Chaos.
I for one, am pretty keen to see what FFG do with the forces of darkness. They're a massive part of the setting. And let's face it, playing the "bad guys" can be a lot of fun, whether played straight or for laughs.