Say what you like about Blizzard but they still know how to make CGI videos.
They always did, although I still think the WotLK one was the best of the lot, and if the Draenei looked as bad-ass in game as the paladin in the TBC cinematic did, then there would be a lot more of them around.
The thing that doesn't quite ring true about the MoP one is this: in the cinematic, the Pandaren unites the Orc and Human in a common cause. In the game, the Horde and Alliance will divide the loyalties of the Pandaren, turning them against each other...