It’s not a trailer per se, but it does offer a look at the World of Warcraft movie’s visual direction in a novel way.
To see it, you will need to head here to grab Legendary’s VR smartphone app, and then within the app, you can download The Skies of Azeroth experience. Ideally, you will want a contraption that places your phone a few inches in front of your eyes and allows your phone to move with your head like a headset. Without it though, you can do like I did and hold the phone a few inches in front of your face and move your phone with your head manually.
The “experience” is brief and has you looking down on crowded fantasy city form the back of a Gryphon. As you fly you can see other Gryphons with passengers flying around you. You can check out some screen grabs below.