From the Courting Destiny video on the front page it looks like everyone who beat Garrosh pulled a Turalyon/Doomhammer on him and have him locked up in a rat infested arcane cage below the temple of the white tiger. Garrosh is now officially a plot thread. I just hope he's one that never comes back. At least they're being more careful with him than they were when they locked Doomhammer into the undercity.