For those who don't haven't read the artifact research yet: affliction and arcane artifacts are heavily tied to Karazhan. Ulthalesh is why Deadwind pass is so dead and created the nexus where Karazhan would be formed. Aegwynn used Aluneth to create Karazhan on that Nexus. That obviously makes them heavily tied to the dungeon in 7.1.
Any predictions for what might be in the patch? There's been cool stuff in launch where you can get a small amount of artifact power for other artifacts. Some lore interaction with NPCs? A hidden room? Maybe something related to activating Nightbane?