Keystone master artifact appearance will remain

The appearance of keystone master artifact is still available in azeroth
With the continuation of the azeroth Beta and our consideration of the transition from legionnaires' second coming to azeroth, we have decided to make the existing keystone achievements permanent. No new achievements will be made in completing the epic keystone dungeon on the 15th floor or above in the new film.
The artifact appearance associated with keystone master is still available in the race for supremacy of azeroth. Players can before August 13, the achievement in the bianconeri return, or in the supremacy of azeroth after the release of several Zhou Shishi key stone dungeons open epic levels in 120 to complete 15 key stone dungeons when available.
This means that only the basic artifact appearance of the mages tower is not available in the battle against azeroth.