The servers will come down for the Dungeon and Raids Update on September 29, at 13:00 GMT/ 9:00 AM EDT/ 6:00 AM PDT. (check this link to see when this is in your timezone). The downtime is estimated to take 2 hours.
As a reminder, the Occult Defense “Highest Wave” leaderboards will be resetting after tomorrow’s update due to the changes coming.
The servers are back online!