#1 - March 5, 2013, 2 a.m.
With the release of Patch 5.2: The Thunder King, the vast Throne of Thunder raid will become available. As in previous raid tiers, Raid Finder wings and availability difficulties will be staggered.
To access the new Raid Finder wings you will need a minimum average item level (ilevel) of 480.
Here is the current schedule for the staggered opening of Throne of Thunder:
March 6 – Normal Throne of Thunder—Now Open
March 13 – Heroic Throne of Thunder and LFR Wing 1 “Last Stand of the Zandalari”—Now Open
March 20 – LFR Wing 2 “Forgotten Depths” —Now Open
April 3 – LFR Wing 3 “Halls of Flesh-Shaping”
April 17 – LFR Wing 4 “Pinnacle of Storms”