We’ve datamined all the different Warlock Tier set appearances for Dragonflight Season 1. The Mythic and PvP Elite sets have special animations and effects!
Warlock Tier Set Transmogs from Vault of the Incarnate Raid
Warlock Tier Set Transmog from Mythic Mode
The Mythic Warlock tier set transmog has special lightning effects attached to the Helm and Shoulder pieces! You can see these effects in the video below.