It seems like his goal is ultimately the good for azeroth right? well it seems more and more that if that's his goal his ultimate reason for being a raid boss would be.....
He comes to realize that the good of azeroth would be the the destruction of the alliance and horde would be the part of the greater good for azeroth because they do more harm then good for the planet itself. I say this because i can totally picture blizzard being this predictable in the lore.