A, (my 2cents), that way there would be a use for the 'palace' function that is in the background of the game. Now I don't know if this has been discussed b4 (just 'skimmin' the Posts) but back when I played CIV I this function was used every so often. The French had gobbled up the Zulu turns and turns b4 but when I took their capital the French Empire suddenly split into loyal Frenchmen and Zulu's who took over their previous cities and re-established their place in the game. Civil war could work like that, (say the EEE who disappeared years ago finally reappear in the confusion of their 'slavemasters' capital falling, their 'underground rebellion' and 'sympathizers' finally win out.)..
Just thoughts........(GREAT ideas by the way, love reading this thread

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"The Empress took your name away," said Chance.
Owen smiled coldly. "It wasn't hers to take. I'm a Deathstalker until I die. And we never forget a slight or an enemy." -Owen Deathstalker.