There's not a ton of places to take a WoW story though. It's already narrative driven, so we already know what the story is. The only way to fo would be to zoom in on obscure characters, which wouldn't be all that fulfilling. Plus, well, there's no easy way to say this, but overall the Warcraft story is hot garbage. The fact that the game has gone on for so long and has been built like layers on top of one another plays a huge part of it, but the story is largely shit.
They'd do better to take a property with a lot less established narrative like Overwatch or Diablo and tell a story in one of those universes. They would actually have a lot more narrative freedom, and they would be able to work with a property where so much detail hasn't already been established.