On Thursday, June 9, 2011, at 4:00 a.m. PDT all U.S. and European galaxies will be brought down for a hotfix. The servers are estimated to be down for 4 hours. If this timeframe changes, we'll post an update on the official forums.
When the Hotfix is complete, all galaxies will be live but unavailable while we complete final testing. All galaxies will be made available after that time.