If you have ordered World of Warcraft: Land of Shadows, you can create the Death Knights of Pandarens and Allies in the N'Zoth illusion.
Of course, if you want to create a DK, you must meet the unlock requirements. These requirements appear when you mouse over the match icon on the character's screen.
These pandarenes and DK allies begin with a new initial experience and perform introductory tasks with Bolvar. Then you can continue your adventure as a tribe or alliance. If you choose to create a DK, you will receive a mount from the Acherus Deathcharger class after completing the introduction task. The Allied DK will also receive its racing mount.