Check the Black Industries site (they're doing the RP game for
GW), quite a bit of info there.
According to
http://www.blackindustries.com/?templat ... wsitem=188 it's due for release in August 2007 (it was previously going to be March 2007 but it's been moved). The game system is based upon Warhammer Fantasy Roleplay (I still have the original hardback rulebook for this from way way back in the 80s, not sure how similar the current version is), so it's not a d20 game - then again, GW using an open game system would be unheard of, they only ever use their own proprietary systems.