I would be happy just with this. As for the changes you suggest in relation to Governments, I think it would be too much work to implement (a lot of civs have loyalty bonuses for example), but I completely agree there should be some kind of drawback if you want to change government, and this drawback should be worse the higher the tier is. I also like the unique Casus Belli and dedication. As for governors I also believe they would be better without those cartoony characters. Maybe working similar to spies (special unit that you move to one of your cities and give you some bonuses). I don't really care for the GP really, but I hope they expand its uses somewhat with the new expansion.