
The full trailer is due today (Friday) and the countdown has finished, but it has not been put online yet. According to the Legendary page on Facebook it goes up in just over under hour.
EDIT: It should have gone up 8 minutes ago.
EDIT2: The official trailer for Warcraft: The Beginning is up:

Is anyone planning to go and see Warcraft: The Beginning?
Do you know where it fits into the World of Warcraft timeline? Here is the blurb from their website:
Do you think there will be any books, or other products coming out with the movie, that might be usable in tabletop games set in the World of Warcraft campaign setting?Warcraft: The Beginning wrote:Story
From Legendary Pictures and Universal Pictures comes Warcraft, an epic adventure of world-colliding conflict based on Blizzard Entertainment’s global phenomenon.
The peaceful realm of azeroth stands on the brink of war as its civilization faces a fearsome race of invaders: orc warriors fleeing their dying home to colonize another. As a portal opens to connect the two worlds, one army faces destruction and the other faces extinction. From opposing sides, two heroes are set on a collision course that will decide the fate of their family, their people and their home.
So begins a spectacular saga of power and sacrifice in which war has many faces, and everyone fights for something.
Directed by Duncan Jones (Moon, Source Code) and written by Charles Leavitt and Jones, the film starring Travis Fimmel, Paula Patton, Ben Foster, Dominic Cooper, Toby Kebbell, Ben Schnetzer, Rob Kazinsky and Daniel Wu is a Legendary Pictures, Blizzard Entertainment and Atlas Entertainment production.
The producers are Charles Roven, Thomas Tull, Jon Jashni, Alex Gartner and Stuart Fenegan. Jillian Share, Brent O’Connor, Michael Morhaime and Paul Sams serve as executive producers. Rob Pardo, Chris Metzen, Nick Carpenter and Rebecca Steel Roven co-produce. Warcraft will be released by Universal Pictures.