Update: The servers are back up early, so you can jump in and get playing right now if that's your thing.
We've got a week left of Legion but that doesn't mean there isn't time for more class tuning.
The WoW team has gotten so good at maintenance that the servers have been up early almost every recent maintenance period.
It's time for some late Friday night class updates, everyone!
Update: As of 12:50PM PDT / 2:50PM EDT, North American realms are in the process of coming back online a bit earlier than the original extended maintenance suggested.