Blizzard has released the launch trailer for the update on the official World of Warcraft channel:  

The fresh Patch 11.1 brings a lot of new content to the game, including:  

  • Continuation of the storyline, where players can participate in the conflict between the four goblin cartels;  
  • The goblin capital, which had existed only on paper as concept art for almost 30 years;  
  • A new dungeon, Operation: Floodgate, where goblins are preparing a sabotage on a dam;  
  • A new 8-boss raid, Liberation of Undermine, with Gallywix as the final boss;  
  • A new PvP arena styled as a race track;  
  • A new land mount called D.R.I.V.E., which can be customized in terms of speed, acceleration, and handling, similar to the dragons from the previous Dragonflight expansion;  
  • A global reward for completing the raid, featuring 20 levels and exclusive bonuses.

The Undermine(D) update is already available in the game.

Main image: reddit.com