Well if i remeber right playing that old dues ex mod we had some event with a lord at the camp/battle/siege site, maybe have that stuff back in, but as always with more stuff for more imersion? I'll love to make friends with Lord Bolton and lets say something happens to Liege lord stark and he tries to claim lordship of the north maybe our relations from war would maybe make me pick bolton instead of stark? More Battle/Camp/Siege events with friendly lords/Randomly/or not generated troops/characters which save/end your life,/Squire/Enemy lords, maybe a Davos inspiring event in Storms end
. Sending your son off to war in your stead (my example i guess would be edmure during war of 5 kings, maybe have an AI control your armies?)
Many many more possibilities yet i cant think of more during this moment i'm sure i'll come up with more as time goes and of course add anything to this that fits.