This week brings us Mythic+ Dungeons, Mythic Nerub-ar Palace, Raid Finder Wing 2, and Story Mode difficulty! Blizzard has scheduled a 3-hour maintenance period on September 17th from 7:00 am to 10:00 am PDT to prepare for this new content.
During this time servers will be down and the game will be unavailable for play.
Update #2: Blizzard has extended maintenance until 12:00 PM PDT.
Update: Blizzard has extended maintenance until 11:00 am PDT.
As usual, maintenance may conclude ahead of this time or extend further, so stay tuned for additional updates!
Season 1 Mythic+ Guide Nerub-ar Palace Overview