Kingdom NW disparity affect gains
I think this will be a good step towards encouraging conflicts/wars between evenly matched kingdoms.
Currently most large kingdoms grow towards the top by bottom feeding on provinces in much much smaller kingdoms, this should be discouraged and allow/encourage conflicts towards more evenly matched kingdoms in terms of NW at least.
Also, the NW range for war declaration should be reduced to perhaps 80-120% to discontinue fake wars.
I think this 2 changes will be a great step against power-play by alliances and ensure more interesting conflicts between everyone!