In addition to all of that stuff, there's also two brand new playable races, one of which is the Blood Elves (Blizzard hasn't revealed the other). The Blood Elves are mysterious creatures that have what appears to be an unhealthy thirst to practice magic, even if it means dipping into demonic practices. Their adoption of these evil teachings resulted in them being banned from the Alliance, thus, they've turned to the Horde for guidance and help reaching Outland, where their messiah and last of the royal bloodline, Kael'thas Sunstrider awaits their arrival. They're also out to kill any demons that destroyed Quel'Thalas, which is where they used to live and a place that you'll have the opportunity to explore.