All servers will be taken offline for maintenance on Wednesday, October 23rd, 2013 to address an outstanding technical issue. US servers will be unavailable beginning at 7:00 AM PT and are estimated to be down for approximately one hour. EU servers will be unavailable beginning at 6:00 AM CET (5:00 AM GMT) and are estimated to be down for 2 hours.
Here is the patch note:
Fixed an issue related to creating new characters.