I'm not expecting the level of detail Rosetta brings--but I eagerly await Rosetta's Civ7 sequel (which I think SeelingCat already mentioned being eager to make). If I'm Egypt and become Mongols, I 100% want Waset to become Tipe; if I'm Abbasids and somehow become Qing, Baghdad should become Bāgédá; etc. Again, this is a level of nuance I don't necessarily expect from the devs, but I do look forward to modders providing it. (I'm also very okay with some speculation from modders--e.g., I don't know the Nahuatl name for Athens, but I'm okay with something like Atenatl or Atellān.)