Currently I am adding a new addition to trade system. At next patch you will be able to see prices of selected item in (especially nearby) centers if distance is less than (48 + trade_skill_of_player x 12) to current center. So if your character's trade skill is good enought you will get good clues while deciding where to send that caravan. But we will not add any more serious additions for next patch more in general. Only some small adjustments...
Example :
If your trade skill is 3 and if you are at Smolensk you will be able to see price of selected item at Moscow, Pskov and Slutsk. (Centers with distance to Smolensk < (48 + 12 x 3))
So now, you will first select trade good and secondly target center, finally number of items and guards at mayor's caravan dialog.
