New Mounts Ok, multiple passenger mounts. Need more be said? If you have 20,000 gold (approximate) kicking around, you just got yourself a three person giant mammoth mount. Car pooling? Not only is this efficient for grouping but it has a vendor and a repair npc on it! Get that. New flying mounts and epic mounts, including the new engineering mount .
Death Knight
The death knight is the new hero class of Azeroth, createable if you have a level 55 character on your account. Once made, your deathknight will start as level 55 in the eastern plaguelands with basic green items. Death knight plays a damage and tanking class, using runic powers and frost skills to increase armor and dodge ratings.
Lake Wintergrasp
Lake Wintergrasp is the first world PvP zone, one faction will defend a keep, and the other faction will try to attack it. Meanwhile, both fight over towers and siege workshops in the area. Siege vehicles can be used to take down buildings and walls (which are destructible). When a faction wins, you will recieve a zone buff that enables drops from 
instances in the zone to be vendored for prestine gear. A very small amount of the features in detail :) Check it out now yourself, and happy questing :)
instances in the zone to be vendored for prestine gear. A very small amount of the features in detail :) Check it out now yourself, and happy questing :)