I'm going to be building a Sid Meier's Colonization semi-clone. Beyond that, I can't give away much more info. I have figured out so many neat things to do with ToT I feel like going nuts. My creativity unleashed. It seems to take the martyrdom of another project for me to unleash my potential... last year, a mechwarrior scenario died a quiet death so I could bring everyone the joys of Gang Wars.
I'll tell you that a big part of this scenario is trade.