Will social groups in CK in one province sometimes, considering they have separate power and loyalty, be of difrent cultures as well? It would be great for both gameplay and historical accuracy. Then with nobility in certain province being of state culture and peasants not, player might favour the nobility and give it more power than otherwise. And such diversity in cultures in middle ages was very often. Say on nearly all eastern border of HRE, nobility and burghers were exclusevly German, while peasants were Slavonic.