PowercoreX64 from Sc2Mapster is working on a custom campaign following the Nerazim Protoss. He is just getting started, but looking for feedback!!
Vorazun Campaign
The story is as follows: It is a time of great peace. 2 years have passed since the destruction of Amon. The Terran Dominion have been fighting against the Defenders of Man. The Zerg Swarm have been infesting worlds close to Char. The Protoss have been rebuilding their once great civilization. However, some provinces have gone dark. Some templar say this is the work of their Nerazim brothers.
Check out a playthrough by TChosenOne