We've datamined three in-game cutscenes from the Patch 9.2 PTR which feature how we get to Zereth Mortis and some details about the Forge of Afterlives. These cutscenes contain PTR spoilers and are an early preview without some voice over lines, sound and music, and can be changed by Blizzard at any point.
Portal of the Primus Run for the Portal Deactivating the Forge of AfterlivesNote: In this cutscene, the Jailer's model is encrypted and speculated to be wearing his armor, but otherwise
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