No - as you said - "there are hopefully going to be significant differences between the two games". So our setups will become very incompatible in this game, and as far as I know, pretty much everyone who has a built up setup is very concerned with the situation.
But this is the main idea of the new game. There will be differences as this will be a new game. There are difference between the US and UK emergency services and these should be reflected between the two games. I don't understand why you are expecting compatibility with this? I'd suggest being less concerned with duplicating profits and more concerned with suggesting how the UK game will develop.