How come?
Anyway, I hope not to much characters get killed off; I can understand that Garrosh perhaps brainwashed some semi-important horde character (which we then kill off) and perhaps will take an alliance character to its death while dying....
But some characters are still 'being made' like Anduin, or still have potential like Jaina. Also, it would be kind of donkeyrape if Varian would die aswell, as then both hotheaded leaders are dead and we can go back to world of peacecraft again (Personally, I would like world of peace craft but most people wont).