Starting in the PTR builds, Mac OS X users with Mac OS X 10.6 or earlier were given a warning with Patch 5.2 about support for Mac OS X 10.6.x going away soon. Thanks to some research by Ten Ton Hammer, some future changes have already been hinted at: In the aftermath of Theramore's Fall, Jaina Proudmoore has formed the Kirin Tor Offensive under the Alliance to explore Pandaria and Lorthemar Theron has split off as the Sunreaver Onslaught for the Horde. There are also reports of the continuation of the new warlock epic quest line that started in Patch 5.1.