I'm loading up a multiverse plugin on the server so that we can have multiple worlds.
We can even have different permissions on different worlds, so if you want a world where you have the power of Admin, then we can do that!
I'm still working out the snags... like the fact that whenever a new world is created it is created with nobody having any permissions at all, so configuring any worlds are manual.
I've created a world called NewWorld just for test. I'll probably delete it, so don't go crazy there.
You can also get to the Temporary world we used between upgrades before, but the spawn doesn't really put you anywhere close to where we were that I can tell. I've not explored a whole lot.