Just think about it, we have the pillar of creations, Xavius is dead, Gul'dan is dead, Illidan is back, Karazhan is saved. We have nothing left to do except close that portal. I think Blizz will announce that 7.2 will be the final patch soon and I personally feel that 7.2 will be focused around Argus with Kil'jaeden as the final boss. 7.2 will hit the PTR during March-April, released May-June. New expac announced at Gamescom.