In the latest PTR build, we datamined the name of a new in-game cinematic coming in Patch 10.2 that might provide some hints at the Guardians of the Dream story campaign finale and potentially the future of the Night Elves.
Unfortunately, the in-game cinematic is encrypted and only the first 5 of the 7 campaign chapters are currently testable on the PTR including the 10.1.7 Shandris Feathermoon Questline and the first 4 storylines of the Defenders of the Dream achievement.
