Right now, speculation is that Fantasy Flight Games have lost the licensing to the Warhammer and Warhammer 40K franchises from Games Workshop. An unconfirmed source has told EN World that the license is, in fact, ended, but as of the time of publication no official word from either Fantasy Flight Games or Games Workshop have confirmed this information.
http://www.dakkadakka.com/dakkaforum/posts/list/701613.page