TheGhostEnthusiast
King
While I'm still firmly against a fourth Age, I think it would be interesting if you got to pick Uniques available based on the traits and irl geographical regions of all your previous Civilizations, and then you get to pick a name you used in any of the previous Ages. You get to decide whether the crisis maintains your current national identity or leads to a reclamation of an old one, like the (relatively) recent "return" of Greece and Egypt as nation-states in real life. Like, if we get an Exploration "Germany" as an easier name than HRE, your Prussia could become "Germany" again for the late game. You could even sort of represent modern China as a "return" of Han China, the national identity connected to the nation's majority ethnic group replacing the name of the foreign Manchurian dynasty. However, your "Mexico" can just keep the name (unless you're feeling an alt-history modern reclamation of Aztec culture as your nation heads towards an exoplanet expedition, in which case you can go for it!) I'm much more attached to the pick-a-name idea than the pick-your-abilities idea, though, and the former can happen without a fourth age, so...