Some two player addition would be nice, where you can invite friends off steam to play with you with their merc company, not leaving it open to anyone, but more dedicated to just the people you invite into your world.
Also, just a quick thought if cities can be destroyed and taken over by baddies shouldn’t you be able to either build or retake those cities in your banner, this would be greatly cool, and it would allow for upgrading cities to better resist invasions. maybe able to leave mercernaries you train to guard the city as it’s army. would add a new layer of in-depth playability to the game and get the player more involved.
better one hand spears, maybe a top class spear for use with a shield