Grimrail Depot will be added to the Mythic+ pool of dungeons in Shadowlands Season 4. Here's a sample +10 run of the Warlords of Draenor dungeon from the Patch 9.2.5 PTR.
The sample run includes testing of the new Season 4 Affix called Shrouded. Thanks to MrGM for the video.
Blizzard added a new accessibility option for players that hides moving environment pieces in Maw of Souls and Grimrail Depot. You can buy the elixir from an NPC at the beginning of both dungeons.
Source: News Latest Topics https://www.icy-veins.com/forums/topic/65926-grimrail-depot-mythic-10-run-on-the-patch-925-ptr/