I would like to see production lines in Virtual Villagers 3. For example, In order to make spears for fishing, you will need to get some stones and carve spearheads. You will also need to get lumber and carve it into poles. Then you need a craftsman to put them together.

So instead of just having "Food" you could have a number of different products. Lumber, stones, etc. would be required to maintain the houses in the village, so you would need lumberjacks and stonemasons in addition to builders. The way it is now, where builders just "move their hands" over the houses is silly.

You could take this idea to farming as well. Villagers could harvest grapes and then make grape juice, or pumpkins and then make pie. I want to see a full fledged economy with lots of skills for villagers to train in, lots of products and tools for the villagers to use.