I'm currently in the process of calculating how many Civs we would need, exactly to make that work.
Gaze upon this monstrosity that currently represents the Europe graph (some Civs to be trimmed but still):
View attachment 738338
AAAARGHHHH. (and this is JUST europe. I am NOT looking forward to the Middle Eastern and South East Asian graphs)
Well, I noticed that the game already has a slider with a 'Classic Mode' in the game creator, so something might be in the works.
I think the optimal way to approach this would be by giving every leader a pre-determined path as CLOSE to an approximation to the personal history and/or their Civ's path as possible. Hattie's path should be Egypts (plural) across all three ages, while Augustus and Machiaveli should segue into leading Italian factions in Epxloration and Modern.
Of course SOME of the leaders already chosen have a pathetically narrow scope (Machiavelli) while others such as Genghis Khan and Charlemagne cast a net so wide they could feasibly lead all Civs on their home continent. Working leader-based is key though, with every leader vicariously representing their home Civ as they've done before, and adding leaders for the Civs that still lack representation such as Bulgaria and Hawaii.
I'm trying to get a discussion going in
this thread in Ideas and Suggestions for leader-based paths, plugging the gaps that already exist with as few Civs as possible. Spoiler: we're gonna need way more than the eight we got from DLC so far. Anyone who is willing to come up with a constructive solution (beyond: Switches bad, won't play) is welcome to join in. ^__^