I'd like possiblity to set up automatic trade lines. In tribal wars and stronghodl kingdoms this must be done manually, and it's just boring manual micromanagement.
What you need:
Each village can set up a trade route (send resources to another village/market). You can set up a resource to send to a specific place, and you need to be able to set conditions where you want to do this, and conditions in where you won't do this. You can set up a number of these, and prioritize them. If a trader is available, he will do the first transaction where the conditions are met. By being able to set up enough and these, and enough conditions you can completely automate trade.
It would be a very nice strategic aspect.