For fans of the visceral, violent, and altogether awesome RTS 'Warhammer 40k: Dawn of War' by Relic Entertainment, today's a happy day as Relic and THQ (publishers of DOW) have announced a second expansion pack for their extremely popular RTS. This second expansion pack will add TWO new races to the pre-existing five races: the high-tech TAU and an as-yet unannounced mystery race. Fans of the series are betting on either the undead robotic Necron race or the ravenous alien species known as the Tyranids as the remaining mystery race for the game. Dawn of War, released over a year ago has already seen one expansion pack which added the Imperial Guard race to the game and a few new troop types and tweaks for the remaining four original races in the game (the Eldar, Chaos Space Marines, Orks, and Space Marines). This forthcoming expansion pack won't be released until sometime this fall (possibly Sept/Oct).