These are nice improve. I would still like to see caravans deploy from one city, collect goods and deliver to another city of same member? This sounds reasonable as the Lord of both should have ability to divert caravan to another holding, also should be able to purchase at marketplace and assign destination for goods delivered. Since goods purchased are delivered, the buying party should be able to specify delivery locale. Advanced trade aspects for your consideration...
now how bout border fortresses that are erected at distance from city and garrisoned with soldiers from city within distance boundary. and fortress forces should be able to auto deploy (if set to) against hostile invading forces (diplomatic or military), coming in within designated range of position. These fortresses also open to attack and should be able to have defensive levels and fortification additions upgradable also. Advanced territorial security aspects for your consideration...
finally, how bout anti dip units that can go into another player holding and attack diplomatic units there?
Advanced diplomatic interaction aspects for consideration... keep up the good work, we are happy to see Illyriad change and grow. nice job with this.