Blizzard announced the new expansion at BlizzCon today following heavy rumors when the title was discovered in a trademark database. The expansion will pit players against "a savage enemy without remorse."
The opening ceremonies showed a trailer for the expansion, which boasted a slew of features for the new expansion. These include the world of Draenor, an increased level cap to 100, the ability to instantly advance a single character to level 90, a garrison to build and defend, and new character models.
You can keep an eye on warlordsofdraenor.com and the official FAQ from BlizzCon for more information once it launches and watch the trailer after the break.