The development server is live again, if you're a staff member or level 80+ you can find it at the link below. It took me a good few hours to make it all work with the new account system but I think I got most of it done.

If you encounter any problems throw a ticket my way and I'll get it looked at. The database has been completely reset so all will start from scratch.

Link: Development Portal

Some new stuff should be coming up on there for testing soon.