absolutely. we all know but are honor bound to keep it a secret and most definitely under the pain of fingernail clipping with old hobby knife blades cannot post a thread about it...
in all seriousness, if there is news people usually RUSH to post it first. the last report was that the game is scheduled to come out in 2013 so you've got some waiting to do. it's usually a good idea to not post a thread in news and rumors that contains a question instead of actual news/rumors. the usual
40k and videogame discussion forums are completely fair game for questions, though. at a bare minimum, you should put a question mark in the subject so people don't actually think YOU have info about it and are posting it in a new thread.