Cult of the Anti-Magicae
Now I'm a bit biased on this one--I love the Anti-Mage. This equipment overhaul redesigns the lone mage-stalker as a member of a larger cult, complete with matching robes and formal masks for dinner parties. while the images shown on the Workshop page are concept art, the author ( Hawf the super rad ) promises that the whole thing has been built as a 3D model ready for use. I'll give him the benefit of the doubt, but I love that it adds to the existing lore rather than simply making him a hair dresser or something random.
Vote for or against it on its Steam Workshop page