Well, of COURSE they did the first big reveal for "Warcraft" details at BlizzCon.
It's only fitting that they would speak directly to the most actively engaged fans of everything having to do with the universe that's been created and carefully tended by Blizzard Entertainment. They have been very careful about the way they've exploited that fanbase, the way they've spun things into other media. They've taken their time. They have not rushed to get to this moment, so this sort of reveal is designed to speak directly to people who love this and take it seriously. Duncan Jones, the director of 2016's big fantasy epic, was at the convention today along with Chris Metzen (Senior Vice President of Story and Franchise Development for Blizzard Entertainment), VFX legend Bill Westenhofer (VFX supervisor for the film), and Rob Kazinsky, one of the stars of the movie.