They're going to have to remake all of the zones that depict horde and alliance at war with each other whether they like it or not if they are going to revive the living world concept for ek and kalimdor and the war is officially coming to an end. Guess they didn't think too much about that when the cata redesign came around. Anyways, Blizzard is free to do a 180 on design choices they tweeted about (which they have a high possibility of doing with monthly updates).