It'll be down for a bit, the exact timeline is unknown, while I migrate it to a new server. Beyond this, there shouldn't be any other changes.
Also coming down the pipe line is the new new server I mentioned a month or so ago. This one is virtual, so please let me know if you encounter any sluggishness beyond what you'd normally expect.
Also, much further down is a new way to register realms. Right now I'm looking at an automated form that will automatically add you to the realm map and pop a starter page in the wiki. This will eliminate needing to wait for me to get around to adding realms manually.