In an expected but welcome piece of movie marketing, World of Warcraft will be receiving Warcraft exclusive items! VG247 reports the latest update added Transmogrification rewards in the form of weapons likened to those found in the film. No word as to what you gotta do to unlock it, but we do know the items will be available up to two months after the film's release!
So if you needed an excuse to see Warcraft June 10th there you go, but I doubt you needed incentive for that!