i hate to drive posts off topics but i'm gunna take DarkHuner's idea and play with it for a second here if you don't mind.
what if you could start a new city?
after you beat the main quest the coucil of elders is so pleased with your work that they have a new city built for you, with you as the count. maybe somewhere in the nibanay, near the bend of the corbolo river? or the "imperial reserve"? much like the strongholds we got in morrowind, only you actually got to lay this one out?
or what if the legion wanted to re-open the legion forts in the wilderness in light of all the civil unrest due to the oblivion invasion? you could go around the old forts and clear them of all the skeletons and ghosts, and of the bandits that are an obvios threat to law and order? when you clear one a team could then start re builing the fort, and there would be a new fort there in a couple months. they wouldn't be anything all that spectacular, but you'd be payed well and you'd have more places to stock up on suplies out in the wild.