At present, I have not encountered any official announcement from Blizzard regarding the continuation of pet battles in the Midnight expansion. Xu-Fu’s Pet Battle, a website dedicated to World of Warcraft pet battles and collection, has stated that pet battles may be phased out during Midnight. Can anyone confirm whether this information is accurate? As an avid enthusiast of pet battles, pet collecting, and pet battle world quests, I hope these features will remain part of Midnight. They constitute a significant portion of my engagement with the game.
The breakdown is in the beta forums.
Here is something about pet battling from over in the beta section:
https://us.forums.blizzard.com/en/wow/t/feedback-pet-battles/2178963
There’s also some other links below the blue post. Also, you may want to check the Pet Battle section of the forums.
TL;DR - we are not getting any new pet battle masters for dailies. Everything that exists in the game will stay in the game.