Trueflight

It's a mod for a game... That is still the best WH40k game to date. I would play moded DoW over anything else that has come out since. Not to mention the fact that since they aren't pushed by unrealistic deadlines and budgets, the mods tend to have much higher production quality than the original game did. Heck even the voice acting is better.

Night Lords and Emperors Children are both in Dawn of War Unification.

Carcharodons would be cool to see, but no one is filled, they will be called the Space Sharks as originally intended and not by GW's silly attempt at rebranding. Right up there with the Imperial Guard. No one calls them the Astra Militarium or whatever nonsense name GW tried to change it to. Same with the Space Marines (Adeptus Astartes).