Several prominent NPCs have gotten new alternate universe undead models on the 10.1.5 PTR. Vereesa Windrunner, Uther, and Thassarian not only received an incredible undead glowup, but they’ve come with some interesting titles suggesting a very different timeline for the Scourge and Forsaken then what we currently know today.
There are many peculiar things happening within the timelines during Fractures in Time, so we don’t actually know where these NPCs are featured just yet.