One thing I really enjoyed in Warband, was buying goods in Cities (Like Linen, Wool, Wine) and selling them in neighboring Cities based on where there is a higher demand for them. I was a fun way to keep busy while making steady profit, and a good excuse to travel over the world.
I think it would be really cool in Battle Brothers. :-) Unless I missed out on it already existing.
I think that’s something we could indeed add in time. In general we want to keep a clear focus on managing a mercenary company – however, in this case I feel that it’d be relatively low effort to implement, and having a few more goods to loot, trade or even get paid with would probably do the game good. It could even help giving the villages a bit more character around what they import or produce themselves. Don’t expect a complex trading simulation, though.