THQ Inc. and Relic Entertainment today announced that Winter Assault, an expansion pack Warhammer 40,000: Dawn of War is under development and is scheduled to release in fall 2005. Warhammer 40,000: Dawn of War - Winter Assault will include a brand new, fifth race, The Imperial Guard. For details about the original game, read our review and don't forget that we have locally mirrored a playable demo featuring a full early campaign level, 2 skirmish maps, and a tutorial mode.