Basically this all centres around the problem that once you've finished the quests in the game, you're basically finished it...personally i dislike that, so I wonder if other people are the same way.
Well what im talking about is quests like assassination, burglary (not simply stealing the amount to rise the ranks of the thieves guild and then stop because you're the big guy), destroying a bandit/monster cave
Gathering up items/food or mage specific things, enchanting things for money/experience for NPCs and so on. ( depending on what skills are available and what not)
Some of this ofcourse requires things re-spawn including NPCs...but I doubt we would want to see a nord we killed a few hours before walking around, so I propose a totally new NPC that takes his house/place or whatever (instead of the usual system that we kill someone we own everything of theirs), basically once you kill him/her, an imperial/whomever is the authority will come and close the property down and put a note up (possibly) to buy it from them...unless the person had family, which then you'd have to kill them all for the respawn to occur some days/weeks after.
This solves going on a bloody genocide that left Cyrodil without a population at all...which i found boring as hell.
For guilds there could be a Quest board (going up in difficulty as you rise the ranks obviously), from which you can see the quests of the day, week or month even.
I also have a thought on the main quest or possibly to do with warring/opposite factions in which nothing is simply Black and white, in which a person can go to a mediary/bribe the other faction to join them instead, it would go along way to making Skyrim truly open-ended.
So what are peoples thoughts? is it good or not?