Sorry if this is something that's already been mentioned, but this is my first post to the forum.
I would like it if you could track the family lineage of the villagers. As far as I could tell, in VV there's no way to know who is the father/mother of who, unless you keep track of it yourself. It might even be cool if you could click on a particular character and have a button for a graphic that showed the character's family tree.
Along these lines, I found it a little icky that it was possible for villagers to mate with their parents and children.