Yes I have been thinking if the Lich actually was a Lich before the destruction of Orr which would make sense. He if anybody would be capable of pulling of such a plan. First destroy Ascalon to hide the Ascended then lure the largest invading Charr force to Orr. Then destroy them and create several minions the process and removing several opposing forces at the same time. Two apocalypses so close to each other does seem odd and convenient.