On the North American test realms
Hodir - Thursday night, February 26, starting at 7pm EST/4pm PST.
Iron Council - Friday night, February 27, starting at 7pm EST/4pm PST
On the European test realms
Thorim - Friday night, February 27, starting at 7pm CET.
Freya - Friday night, February 28, starting at 7pm CET.
That means that Hodir will be available to fight in less than an hour in North American realms. The Iron Council will be available tomorrow. On the other side of the globe, the Europeans can have a shot at Thorim and Freya. This surprise testing comes right after Blizzard told everyone to stop asking about a raid schedule. Well, there you have it. Note that this will be bare bones testing of the bosses... there will be no trash, no loot, and no Achievements. It's just the boss in order for Blizzard to tune the encounter. Get to the PTR now and form your raids!
NOTE: According to Blizzard, "To get to Hodir from the front of Ulduar, travel all the way through the exterior section headed straight until you teleport into the interior section. Go up the stairs, over the temporary bridge, then Hodir's wing is to your right. The walls of his wing are ice covered and he's at the end."
Patch 3.1 brings us Ulduar, dual specs, significant changes to all the classes, and more! We've got you covered from top to bottom with our Guide to Patch 3.1.