Blizzard Entertainment announced on 14 October 2016 that WOW Legion will receive patch 7.1, themed as „Return to Karazhan”. The update will bring the titular dungeon, a five-player adventure featuring nine bosses. Furthermore two new raids will arrive alongside Karazhan, fnishing the story of Stormheim.
Certain features of the update can be seen in the update trailer:
Return to Karazhan rolls out on 25 October 2016. For any additional questions see the Q&A held by the developers here
refer to Blizzard forums or test the update yourself on World of Warcraft Public Test Realm.