Hurray!! WoW is back online! No more wondering what to do with all of our suddenly freed up time now. Blizzard posted this update to let us all know.

Realms are back online!
As of 9:15PM PDT, Realm servers are operational! Thanks to the tireless efforts of Blizzard systems engineers, we are proud to announce that we have been able to bring servers back online ahead of schedule. Further maintenance will be required in the next few days resulting in intermittent downtimes, but outside of these maintenance windows we expect the servers to be back at full operation.