Originally Posted by
darkwarrior42
Mechanically or lore-wise?
Mechanically, for zero factions: The war has no impact whatsoever on the game world, is not needed for instanced PvP, and only serves any real purpose whatsoever on PvP servers (which usually devolve into ganking). I can round up a bunch of friends and go slaughter Alliance cities and NPCs, and it won't make any difference whatsoever. On the other hand, dissolving faction lines would expand grouping possibilities, open up racial possibilities (I'd love to play another gnome, but my guild is Horde so I don't have the option; no, goblin doesn't count), open up collection possibilities, and generally make many things possible that aren't possible now without any kind of real loss, particularly on PvE servers (keeping in mind that I oppose ganking, and don't consider its loss painful).
Mechanically, for multiple factions: Faction imbalances will always exist, and while connected/virtual realms address the problem, there are some great meta-political options for having multiple factions.... shifting alliances are a blast, and far more cutthroat than anything WoW has now or has ever had, regarding PvP. The factions of today are only tenuously held together at any rate, and if the factions weren't clearly separated by race you could have some interesting and logical groupings (Pandaren + Night Elf + Tauren, for instance). Everything that is supposedly great about world PvP would be even better under such a system; just wait until one group becomes dominant, and then all others band together to take it down, just to turn on each other when someone else takes power.
Lore-wise, Horde: While the Horde has backed a new warchief, Sylvanas and Lor'themar have little reason to do so. Their last warchief brought them to the brink of war with pretty much the entire world, and in particular the last warchief's actions painted a giant target on the Blood Elves, and closed off diplomatic options with the Kirin Tor and Jaina... and, yes, with the Alliance as a whole. While Vol'jin never supported Garrosh, and only gave him a chance because of Thrall, that's hardly a basis for trust. Thrall named Vol'Jin as warchief.... great, except he also named Garrosh as warchief, so again, not much of a foundation for support there. For the Forsaken, it's always been a matter of convenience and mutual defense, with questionable value to the rest of the Horde.
Lore-wise, Alliance: I've never understood why any other race pledges loyalty to the Human King. He was, at first, a warmonger, and now all of a sudden is all about peace and honor (game perspective; I'm not paying Blizzard to tell me lore points that should be in-game, so I judge him only by how he's presented in-game). Even if that's an improvement, it's not exactly reliable or consistent... and he has the interests of his people in mind, first and foremost, followed by the interests of the Alliance. Yes, I know, the original Warcraft game was about Orcs vs. Humans, but that's not a reason for the Night Elves to continue to ally with the Alliance over all others. The Horde's capital and dominion is primarily in Kalimdor, they're on the front lines.... now, after the defeat of Garrosh, is the perfect time to use those diplomatic ties through the Cenarion Circle to open new dialogues between Darnassus and Thunder Bluff, as well as between Darnassus and Orgrimmar, for the sake of preventing any future outbreaks of war... something that Varian is clearly not willing to do (he's still taking advice from Jaina, who's gone completely homicidal, probably because Blizzard's plan calls for the second-in-command to be a warmonger for the sake of dramatic tension) since his parting words were not a promise or hope for a better future, but a threat and an ultimatum.