Last week's maintenance saw a larger number of servers go down for an extended time in order to receive some hardware upgrades. This week it's the same game with a new batch of servers.
For those realms who are not getting a hardware upgrade, maintenance will run from 3:00 a.m. PDT until 11:00 a.m. PDT. Just another week, nothing special to see here, move along.
For those realms who are getting the server upgrade, maintenance will run from 3:00 a.m. PDT until 1:00 p.m. PDT. Last week the maintenance ran over by a bit on the realms that were receiving hardware work, and I wouldn't be surprised to see that be the case again this week.
The list of realms undergoing these hardware upgrades after the break.