The other stuff, As far as the fighting, i'd like to see use of different weapons, such as spear's, mace's, one handed swords, axe's and all that, I know this game is based on swordfighting, but come on, how awesome would it be to be able to make your men do a spear wall?
As well as the weapons, why not include a race of foreigners? Enemies to everyone? Trying to take over the land of Kenshi. Perhaps they could be related to the norse? Vikings and that.
I like the whole idea of being a vast desert, but, i think its lacking life, its too grim. maybe some forests and trees we could chop down to make lumber, they could be made mysterious like with plenty of mist not being able to see very far. Saw mills and all that, wood we can use to craft spear shafts, axe handle's, tools, houses etc.
It would be pretty cool also if you could customize your armor as in where you want the armour to go in the means of coverage. For example, you could use iron or steel as the parts right, or leather, and basically a pop up would come up for upper body, and you get little slots to put pieces in, like forearm, upper arm, shoulder, chest etc. an you yourself can create custom pieces of armour. The more you add the more weight there will be so choice is important.
Anyways, I know this is alot but yeah I think it would make the game a tiny lil bit more interesting in my view