It would be nice if for example a vassal with a real good relation with his liege could get a "loyalist" trait that diminish the chances he joins a faction (and if he do join, he automatically lose the loyalist trait of course).
I'd also want to see hostage system where you get hostages from defeated rebels diminishing the chance that the dynasty just rebels again as soon as they get the chance (of course also diminish their willingness to join factions). That way the repeats of the same wars over and over might finally come to an end.
I'd also want to see hostage system where you get hostages from defeated rebels diminishing the chance that the dynasty just rebels again as soon as they get the chance (of course also diminish their willingness to join factions). That way the repeats of the same wars over and over might finally come to an end.