Just in case you missed it (what, you don’t check Warhammer Community page every day, like religiously?!), Black Library are looking for new writers!
If you fancy your chances then I suggest you don your writers hat and favourite pencil, curl up on the old scroll wingback leather Chesterfield in your personal library, stoke the dying embers of the fire, top up the brandy and get going on a new tale of grimness and darkness in the grimdark.
There is also some brief advice from Black Library authors in there too that is well worth checking out. Open submissions are now, er, open! Closing date is the 10th April, so get cracking!