1) The ability to choose your heir. Not the clan heir but your dynasty heir. For example First son is idiot, has very low stats or has a trait that reduce fertility while the 2nd he is better . Why not assigning the dynasty's succession to the 2nd, 3rd, Nth son ? And this could ofc lead to interesting implications (civil war ?)
2) After each conquest either by your vassals the newly acquired land should go strait to you and not to the vassal that occupied it. After that, you share the lands. At some point after winning a big war I had a vassal with 13 provinces and various other vassals with 8,9 and 10. I was running around extinguishing fires ....
3) An extra sheet to the ledger where you can see how many koris each of your vassal holds. Not only this. If you (the player) hold more than 5 koris a warning about possible revolts appears, there has to be something similar for your vassals if they extend the limit of 5 territories. Another solution (not preferable) is to either remove the cap of 5 territories or increase it to 10.
4) On Characters and vassals screen an extra column must be added where you will be able to sort your vassals according to the territories that they own
5) The ability to differentiate with a glance your retinue soldiers form your levies. Ιf retinue are added to an army that has levies then they are lost in the mass.
6) How many military commanders do you know at at the age of 4,5 or 6 ? The leader of your army must be at least 16 and must be withdrawn from a pool of military commanders. I lost all of my successors in a war ... And this brings us to
7) You must have the ability to add your military commanders and not assigned by the game as I mentioned in 6 all line of succession was lost on this bloody war with Yamana. If you have not any more leaders then your army will fight with penalty. THe system with military - navy tradition of EU3 works nicely. I do not know though how easy for the developers is to implement something like this
8) The possibility to acquire koris through diplomacy - backstabbing. Now the option to get another's clan leader vassal to your clan exists. There must something similar for koris. It will not be an easy task but at least should exist
9) Last but not least on the outliner you should be able to see the level of your castle and the level of your village in each kori. You can take this information from the ledger bust sometimes you can't see which kori you own. In demense column doesn't work vey well some times. Minor bug perhaps ?
The game is GREAT !!!