Please don't skimp on the RP features for the mod. We will now supposedly have the potential for far greater distances between areas on the map. I think of the need to get a cart and horses as well as having to hire guards when going to the mines/ trading between town etc. Sure that existed in Warband PW but now the castles won't all be within sight distance of each other and those bandits will have much more opportunity to hide and ambush you along the way. Travelling through the countryside will be much more of experience.
I did a bit of scene editing work later in the PW days and loved it, I can't wait to get into the scene editing tools for Bannerlord. I loved to make detailed scenes but would always run into prop limit restrictions and scene size limitations making the map seem so small and transitions between "regions" be very jarring. Now I hope we will have much more freedom there. Taleworlds have thrown out some very large numbers for scene sizes and large numbers for concurrent users etc. Again, going back to my first paragraph, I really am looking forward to vast countrysides/ deserts/ forests/ following rivers for miles/ lands dotted with small villages and old ruins.
We will also have access to many more character models (women, children, animals) and many more props and animations as well as having access to more tavern games and other diversions. Combat, faction wars and the threat of danger are essential in Kingdoms but I sometimes tend to enjoy more and have better memories of the non-combat moments and the times of immersive role play.
On another note, I think I would prefer a scene where all the factions and lore are based on Bannerlord SP lore. Meaning, have the factions on the map actually be "Battania", "Sturgia" etc. but it would also be nice to have the minor factions represented as well. So you could join the "Wolfskins", "Hidden hand" or the "Karakhuzaits". Each faction would have access to the same gear and classes that exist in the SP lore. Much of this would depend on the scene and what the scener chooses to include or where it's located in Calradia.
I could go on and on about this stuff but I'll end it here for now. So these are all just suggestions, anecdotes and ramblings trying to start some discussions, not demands on the mod devs.