As World of Warcraft grows older, perhaps it's time to shake up things a bit to keep things interesting. After seven years of a war between two groups being the focus of the storyline, could we return to a time of four factions? That's right, a return. After all, Warcraft 3 had four opposing armies: Humans, Undead, Night Elves and Orcs. Presently, we have 12 races among the two factions, and considering all the new class/race combinations implemented in Cataclysm, perhaps four separate groups are not as unthinkable as they once were.
With the political climate of the Horde being what it is and Sylvanas going farther off the grid all the time, it wouldn't be a stretch to imagine the Banshee Queen pulling the Foresaken and her Blood Elf relatives out of the Horde, establishing her own nation in Northern Lorderon. (For the sake of racial number balance, maybe she bribes the goblins of the Bilgewater Cartel into joining her with a new home city of ... Gilneas!) Or frustrated by the unwillingness of King Varian to stop the Orc's systematic destruction of Ashenvale , could Tyrande (finally doing something in-game for once) decide to defect from the Alliance, bringing her Worgen and Draenei allies with her?
Do you think additional factions would be interesting? How would they work in game? What do you think they would look like?