I think that people are forgetting that this game has so much lore behind every faction. Games like Planetside 2 have factions that they just made up out of nowhere, GW factions have years and years of lore, with many people knowing and loving these factions for a long time. It is going to be meaningful to be an Eldar, or a Chaos, or an Ork. People are going to have that much more enthusiasm and loyalty to their race than some Vaanu or whatever that noone but people who play planetside even know about. Even if one race is dominant, this game has more of a chance of getting pop. right than any other games.