Here are my plans for the future:
I just released the 2.1.8 version, and if all is well for a few days I will announce its release and hopefully see some good adoption. I am considering this release as a release candidate for 2.2.0, which is a stable branch version number. If all is well with it, I will release 2.1.8, along with any important bugfixes, as 2.2.0 and begin work on the next beta branch, 2.3.0.
As the wide screen changes were introduced in the 2.1.8 release, any changes made after the 2.2.0 release will be made to the 2.3.x branch but also backported to 2.2.x. This also goes for severe bug fixes and security patching.
The 2.3.x series will have some fairly major changed I'd like to accomplish, including:
LUA support (2.1.8 has the LUA library embedded in it, but I haven't done much work on it and you can't use it).
Major overhaul of the HUD. I plan on making use of non-scaling elements and fonts to clear clutter and update the overall feel.
Integrate SQLite into the server and move over the admin system. Doing so will make the various db systems easier to maintain, allow easier extension, and may just inspire someone to write a nice GUI for admin setup.
Keep in mind that nothing is set in stone here. I just wanted to give you all a heads up as to what I'm thinking about.