I've got a planned airline game which will start production a few months after GC is finished. You can see ads for it in GC (Magazine, 2000s RnD Poster) http://www.ventdev.com/forums/forumdisplay.php?fid=4

I've also got 1 or 2 little games I may do in between. Nothing announced and not really in the same genre. (Just income filler to hopefully allow me to full fund Aeromogul.)

That being said, GC can support Tanks, Planes, Big Trucks, Boats, etc through the modding system. Hopefully we'll see some of these things when I implement the moding tools in v1.22 and redo the contracts in v1.23 :)

As for other games, I'll let other people answer. I've been out of the gaming scene for the most part since I started working on GC. :(

Thanks for the reply. Good to know about all this and I can't wait for the mod tools to be out.