That could be quite nice for GAE. Why not post over there? They are currently merging GAE and vanilla glest, and improving pathfinding and adding lua. I'm not really sure of their road plan, but they are gonna have to improve multiplayer sooner or later.
Things they planned on doing include improving the map maker, improving AI, adding support for different image types, and plenty other. If you know how to code, though, it would be handy to add this yourself (contact them, and wait until they are done the merger of glest3.2 and GAE.