I wish I could mod. Easy as it is - got enough ideas for a small overhaul mod without destroying the core game.
Some of the stuff is covered by other mods. Others isn't.
For instance: I want more interactions with nobles and commoners, a meaningful relationship with my spouse and children - you name it. I want hire assassins dealing with enemies of my clan, I want to survive an attempt on my life, I want to be part of court games - you name it. All the jazz. And yes, I want to start as a nameless freeman instead of a noble - so my clan starts from nothing.
Also I want to bring back manhunters and swordsisters - the latter ones as a fully developed diverse troop tree. Bandits should be more powerful but less annoying (lesser parties, bigger parties), I'd love to see bandit lords and heroes.
Lords should also recruit companions for their own armies. Also I'd like to see rebellions, fracturing of a faction if clans / lords are unhappy for too long. I simply want the game to be way more dynamic and a bit more chaotic so the player can't control all things.
Really, it's easier for me to mod the game if I could instead of waiting for mods that might offer all the stuff mentioned above + what I didn't mention - while not being compatible to each other.