Not sure if they are planned but if they are then perhaps expand on them (like the mod for minecraft which name alludes me, but with differences) minecrafts mod allows you to trade with the village people gaining respect and such as you trade with them. How about advancing on this and putting a job board in place where rather than "we need these resources" a job board where positions are available. The village needs a farmer crop and/or animal (both are listed as separate requirements, a bakery etc once you have decided you visit the village chief and see if you are can have which ever job role you wanted and f allowed that role is removed from the job board in less more vacancies for that type are available. Now with your role within the village (for example of this suggestion you are a crop farmer) you are required to provide a certain amount of wheat, barley, rye (what ever types of crops are available ingame) to be ready each and every harvest (this is assuming crops will not grow within one or two game days, but take time) if months are to be added then maybe each month you need to have provided x amount of the given resource for your job type. With months been implemented we can see more with weather aswell, winter is more wet and/or snowy colder weather means lower yields for crops which means more land is required for crops. As the village grows so does your expected amount of wheat. The farmer might need to build a mill to grind the wheat into flour which means they need to make sure they have a surplus each harvest to allow them to always have enough left over for themselves.
If your a animal breeder then you have to do what ever you can to keep stock levels high and protect them from wolves, foxes and other predators and so on for each profession.
