It's high time c-rpg reached this level of player - world interaction, so maybe JADE will fulfill it.
Possibly, in JADE the PC could become the owner of a village. How to get one? Simply purchase it for a hefty sum from the previous owner. Or receive the land from a king or liege lord as reward for noble deeds. Or conquer it with your army
Once you have some real estate, it would generate revenue every so often. You could raise it by enforcing higher taxes on the population, at the cost of losing popularity with the people. You could spend the money on your own purposes or use it to make some investments in your domains. Sponsoring a temple, defensive walls or a grain mill. A prosperous village would attract new settlers, thus increasing your revenue - the circle closes
It would be nice to be able to organise militias that protect your lands from raiders and other perils. And maybe recruit some of these men as companions, to aid you in clearing some nearby dungeons.
Same thing would apply if you happened to be the lord of a town or city.
I might be getting carried away a little (basing on the announcements from the old site), and I sure don't want Jade to become Serfcity (or Simcity) but I think those very general ideas are worth considering