Realms will be offline starting at 2pm PST/5pm EST on 12/26/2018 for around 10 minutes while we update the core and database structure.
Once patched, we’ll start up the realms check for errors and if everything didn’t explode like version 4.0 of WoW we should be up and running. If there is an issue with the core we will roll back changes and get the realms back online.
Update – Realms back online
Update 2 – Don’t forget to clear your cache if you have any issues with the new core or see ? marks on items or skills.