Blizzard released some new today regarding a new instance that will be appearing in the next patch: Dire Maul. Details can be found on the Blizzard WoW site.
Dire Maul Preview
Cautiously I crept through the verdant growth of Feralas, edging ever closer to the towering walls I could make out through the trees. I remained hidden, careful to keep the horns of my feline shape from tangling in the undergrowth. There, dusky skin stark against the lush green of the wood, stood the Gordok ogres. . .
Dire Maul is a new high-level dungeon encounter featured in World of Warcraft's next content patch! Click
here to see the preview.