The official trailer for World of Warcraft Patch 5.4: Siege of Orgrimmar.
In a compound beneath Ragefire Chasm, Garrosh has infused his followers — the ‘true Horde’ — with the pilfered essence of the Old God Y’shaarj. With the power of a primordial world-twisting force at his command, Garrosh can rebuild the Horde in his image: strong, obedient, and, most importantly, ‘pure’.
Vol’jin’s attempts to lead Horde rebels into the capital of Orgrimmar haven’t gone unnoticed — and the mightiest heroes of the Alliance have stepped in to siege one of their enemies’ most prized cities. Will the Alliance be content with overthrowing a despot, or will they crush the Horde at one of the most vulnerable points in its history?
Garrosh Hellscream’s treacherous excavation of the Vale of Eternal Blossoms has finished with sinister results — not just for Pandaria, but for all Azeroth.
5.4 PTR Patch Notes – August 14
New Raid: The Siege of Orgrimmar
– The Siege of Orgrimmar is a 3-wing, 14-boss raid for max-level players, which will call you to take down Warchief Garrosh Hellscream at the head of a host of Azeroth’s finest.
New Raid Mode: Flexible
New Feature: Proving Grounds
New Zone: The Timeless Isle
Legendary Quest: Judgment of the Black Prince
New Feature: Connected Realms
PvP: Redesigned Arena System
The full patch overview can be found here: