In the civ selection screen, I couldn't see any "historical" choice anymore. Instead, there are "geographical" choices and there's a line that explains the reasoning for this unlock.I think to some people this sounds fine, and to others it sounds nuts.
After months of being told that the AI would take the “historic path” and that people concerned about Civ switching should worry less because of this specifically, this is an interesting change.
Not sure how close the AI follows though.