I love every single one of your ideas, in your list, there are many things I've been wishing to be applied in this game for years. To be precise, what I found really useful and innovative was the "TIME" topic. I Can't avoid feeling weird because of the extremely slow pass of time. It's bothering and far more boring. Besides, are you telling me that you can rebuild a bfallen empire in a couple of years? And is it really necessary to put all the day phases when it would be perfect with the classic day/night system? As you said, Calradia becomes much smaller.
Another point is succession. I would buy the game again just because of these. I don't want Bannerlord to become another Crusader Kings 2. But I find it cumpolsory if we talk about medieval society, and also it would allow us to appreciate a real evolution in our game. As I Said, Calradia Becomes too little, and once you've conquered everything... what? Exactly, we need to develope other kind of game modes. I Know that it is a battle strategy game, focused on war and I love it. But there are many ways to appreciate the medieval society.
To sum up, I couldn't agree more with your list, and I think once the time system is changed, the permanent character's death is enabled and also some other features, this game will overcome any Total War or Paradox Entertainment game.