We’ve datamined new Dreadlord’s Regalia armor sets and animated wings in the latest Patch 10.2 PTR build. It’s currently unknown if or how this new armor set might be obtainable, especially since the Dreadlords have not been part of the Dragonflight narrative thus far.
Dreadlord’s Regalia Armor Set & Wings
The Dreadlords or Nathrezim returned to the Shadowlands during the anima drought as servants of Sire Denathrius and the Jailer.