I know only a Sith deals in absolutes, but this is fake.
But ask yourselves, does it really feel like a talented WoW level designer put this together? It looks great for what it is, a fake leak from the community. But there's so little thought given to the layout of the zones in these screenshots. Trees and flowers from all sorts of biomes are mixed wildly, the skyboxes look like someone copypasted Gorgrond (Blizzard puts a
lot of love into their sky boxes these days). That forest looks like it has a dense canopy right above the road, which isn't something Blizzard likes doing given how the camera follows the player from that POV.