They are working hard on UHC, Free-build, the new Anti-Cheat and Parkour (But that isn't really a major problem to the server). It's hard to get things fixed such as: Coding, building, try to find and fix bugs, etc. They can't get UHC released at 1, 2, 3. They said they release free-build end-summer. But then the extened it because they found some bugs, I don't know. So please be patient and play in the meantime the other awesome games of CubeCraft.
Hope you understand my point.