It'd be cool to be able to recruit people/mercenaries and whatnot to help you and form an army/empire and take over Skyrim yourself, and form camps and small forts.
That was the whole idea a few pages back. Like build your own town starting with a single house or a mill or something, then dynamically people would come from around Skyrim, randomized based on proximity to other towns and the road systems, further into the wilderness the less growth takes place, and then as your town grows you can rule over its people, lead raids and stuff. Probably even build things, or help gather resources.
Then you could totally challenge a major city for the right to the province, and all that stuff, but really, just the idea of recruiting people to form a small bandit group would be cool. :D