In yesterday’s 10.1.7 PTR build, a mysterious new Arcane forge object has appeared in the Artisan’s Market profession area of Valdrakken. While the forge itself is non-interactable, it does seem to be an object with some importance due to having a specific map icon and highlight.
The Arcane Forge does appear very Draenei in origin, but we haven’t encountered anything quite like this new object in previous content.