Id rather see a game akin to mount and blade, albeit more polished and with more satisfying combat, where players fight in a physical manner with the mouse and keyboard and they can gather a single unit from the range of their race and they can upgrade themselves and their unit with skills, weapons and armour. I want the combat to be brutal and steamlined as well as the entire world being open, or at least the old world, with some areas being more hostile than others due to opposing factions and so on. I never really enjoyed the MMO that much.
Then players could then gather under the leadership of either a power NPC on an event battle or a powerful player who has earned enough experience and maybe leadership to become a general. Or in the case of greenskins: call a WAAAAGH!!
Then you would get loads of players leading their own squads forming armies in enormous pitched battles. But Gork help the engine that might be designed for this. And the poor pc's suffering under this.