Blizzard has announced that the Weekly Mythic+ testing window will open shortly with all dungeons and updated keystone affixes being testable.
Greetings!Dragonflight Season 2 Mythic+ testing begins on PTR realms this weekend. The test period will begin Thursday April 13th at 10:00 PDT (13:00 EDT, 20:00 CEST), and end Monday April 17th at 10:00 PDT (13:00 EDT, 20:00 CEST).