Attached is a short list of all of the remaining quests. Some are very short and only have 1 stage. They are just milestones in other quests. However, I can't tell if they have been tied to their master quest or not. So this just needs to be verified. Most of these are town quests (Ald Ruhn, Tel Vos, etc) and 1 daedric quest (Boethia). The other big chunk is the vampire series. That should probably be taken on by one person.
There is the quest to become a vampire (not really a quest you are given in the normal way) and the quest to remove vampirism. The rest are the clan quests for each vampire clan. This leads to the problem that right now vampirism hasn't been planned out in the game yet. So I suspect even if you are a vampire, that clan would still attack you (need to setup the faction relationships for clans).
Any who, need some volunteers to create these. I'll take the vampire series. I've already got some ideas.