As most of may know update 1.8 is coming very soon and with it comes a considerable amount of changes to how the naming system in minecraft works, this means that everyone that currently has a fixed minecraft username will be allowed to change over to a new one.
By the use of UUIDs all premium users will be able to change their username, however as exciting as this is it has brought forward a lot problems to plugin developers. Most plugins that use any naming systems such as Plotme, Authme, Permissions and many others relied on the current naming system to work but now need to be updated to accommodate the new system of UUIDs
We are going to start the process of preparing our server for this change over of naming systems and we are currently unaware of how this may affect you after 1.8 arrives, the update may not affect anyone at all and we are hoping it doesn't. We will update you on any news related to this as soon as possible