Actually there will be sort-of alignments like that in MMORTS.
There are total of 9 regions on the world map, and depending on which region player chooses the way he plays and units he`ll use will vary.
For example human player who`s in a forest region, will be able to gather much more wood, would have access to wooden walls, and would have best archers/siege weapons in-game.
In addition to this, we 'might' include professions. Which will allow player`s town to concentrating in one primary, and one secondary profession. Choosing from the likes of: raids and open field combat, sieges and ranged combat, defenses and research, magic, economy e.t.c.
So in a way usual MMORPG grouping will work online. And for example Elven player with economy will and magic will supply resources and nuking, orcish siege proficient player will take care of sieging, and human open field proficient player will lead field engagements.