I was on the PTR and after finishing my dailies for the new "Dominiance Offensive" a yellow question popped up near by. It was a "messenger grummel" with a message from Chen to meet with him in the first town you reach in Kun Lai. Low and behold it's Vol'jin barely alive and unconscious after a fetch quest Vol'jin wakes and tried to say something but the only thing you can make out is "Find Thall" and he hands you a Hearthstone.
Upon reaching Thrall he tells you that the Hearthstone was a prearranged message if Vol'jin ever feared the Darkspear in danger. Upon reaching the a Korkron is waiting for you he screams fel energy and is outright aggressive to Thrall stating the Echo Isle are under martial law! Predictably he attacks and Thrall can't bring himself to fight his former men asking you to free the Isle. When the Korkron are all captured or dead Thrall gives the Trolls a rousing speech and asks you to keep these events from Garrosh while Thrall decides his next actions.
Summation:
-Thrall is back in the game.
-Vol'jin is 'incapacitated'. For now.
-The Korkron held the Echo Isle under Martial Law on Garrosh's orders.
Fun facts:
-Thrall was in the orc starter area apparently teaching.
-Aggra was there kneeling over a bassinet with a little baby orc in it.
-The Korkron now have Warlock-like powers.
-The Hozen who flies you to Chen seems too know allot about what's happening, but doesn't know the significance of any of it.
Anybody got an incite they'd like to share? Questions? Anything?