https://wccftech.com/battle-for-azeroth-demonology-warlock-buffs/

Blizzard has provided additional info on some Battle for Azeroth Demonlogy Warlock buffs that are inbound, including a damage increase for pets and Nether Portal Demons.

Yesterday we covered the upcoming Enhancement Shaman changes that Blizzard plans to implement in a future PTR build, and today Blizzard has detailed some of the upcoming Warlock changes on the official World of Warcraft forums.