we've talked about this already or better to say i've mentioned it already
So the idea is, to disable settlers and senators/chiefs so each player can have ONLY SPAWN village and that's it, no new villages no chiefing etc. While this system would be unplayable on legends, i think it'd fit perfectly to kingdoms, why ?
1st of all, with current system kings recive tributes, governers hideouts/camps and dukes little of each, so there's bonus production which you don't get in legends and can make playing one city little lighter. Than next thing there is, teams would be much smaller, governors would have to work with their kings and vice versa, because there would be no gain if you try to help "enemy" kingdom, because it'd be impossible to join them (you would have to make some changes, that player can be in another kingdom than his area one only if he/she is duke), teams would be much much smaller, there'd be much more action around, because it's ww number is limited, and there'd be much more kingdoms wanting to get ww, so you'll have to deal with some before they arrive etc., players would have to work together even more than they do now, we all know, that in most kingdoms there're 5-10 active people doing everything, while other 100 is just "playing" ....
Anyway i think such server shouldn't be too hard to start, maybe as next test server ? So we all can see where it'll bring us, but at least in my opinion it'd make game less boring and more fun for all