Battle.net announces the new version 5.4 patch is now live nears for World of Warcraft, celebrating the news with a new Siege of Orgrimmar trailer. Update: We initially reported the patch is already live - Apologies for the confusion. Here's word:

Heroes of the Horde and the Alliance have tested their mettle against the might of the sha, the Thunder King, and one another, but an even darker storm brews within the heart of the Horde Warchief, Garrosh Hellscream. His thirst for power has unleashed a calamity that will have unforeseen consequences neither side could have prepared for—and his betrayal of the Horde as Azeroth has known it will soon be complete.

Patch 5.4: Siege of Orgrimmar is nearly here, and we’re pleased to present you with the official trailer! Strap in, because this is going to be a bumpy ride.

Siege of Orgrimmar introduces a ton of exciting new content and features, including Flexible Raiding, a new solo Pet Battle Scenario, the Timeless Isle, Proving Grounds, a new Raid dungeon, and more