I want a game that I will win.
Seriously, I would like to see some crazy game settings, Anything that changes up the rules.
There was one discussed (never went anywhere) that sounded uber-cool where players got to design thier own national troops with mods based on certain point rules, and they only get access to one pathof magic (like fire). And another where players would only be allowed to research one branch (such as construction).
I am greatly enjoying the no indy game, Foresti.
Strangly I did not like the mod nation only game i played.
I would like to see more late age. Also games with more provinces per player like around 40 per would be cool.
I would like to see a low or no magic game. Set research to very hard, sites on zero. Perhaps nerf the national spell casters and pretenders through modding.
How about newbie vs vet game with nerf mods for the vets. Lets see how good they really are.