If nobody is interested in working on AI, how about rewriting a 3D preview renderer in a variant of GTK Radiant?
DarkRadiant
You can download our sourcecode and check it out for yourselves. If you have doom 3, you can even test it.
Basically, we want to get our opensource radiant renderer up to the Doom 3 editors preview quality.
Email me at
darkmod_apply@hotmail.com if interested.
Thanks.