Panopticon
Utilitarian
Let's have a thread that collects city names which could be improved, or city renamings which could be implemented. I have two sets of ideas, which you could describe as realistic and alt-history. Either Rhye can add good improvements, or we can make a modcomp to the CityNameManager.py file.
Realistic
America: The following cities should change names each way in Arabia:
Arabia/Turkey - America
Makkah - Mecca
Al-Kuwait - Kuwait City
Bagdat - Baghdad
Al-Basrah - Basra
Ar-Riyad - Riyadh
Al-Qahirah - Cairo
Al-Hartum - Khartoum
Al-Iskandariya - Alexandria
Masqat - Muscat
England: Yangon/Dagon should become Rangoon after takeover. Thebes/Niwt Rst/Al-Uqsur should become Luxor after takeover.
France: Frankfurt should become Francfort after takeover.
Germany: The following cities should change names each way on the German-Russian border:
Russian - German
Kaunas - Kauen
Vilnius - Wilna
Szczecin - Stettin
Poznan - Posen
Independent: Pagan should be named Dagon (the home of Shwegadon Paya).
Khmer: Dagon should become Yangon after takeover.
Russia: Kiev should be transliterated as Kiyev. Reval should become Tallin after takeover. Also see Germany.
Spain: Mbanza Kongo should become San Salvador de Congo after takeover.
Other:
Batavia should become Jakarta after takeover by non-Dutch.
Mombaça should become Mombasa after takeover by non-Portuguese.
Alt-History
Arabia: Tenochtitlan/Mexico City should become Al-Maksik after takeover.
England: Mbanza Kongo should become Congo City after takeover.
France: Mbanza Kongo should become Congoville after takeover.
Netherlands: Fort Vredeburg in Java should be changed to Batavia - it's far more interesting to be honest!
Realistic
America: The following cities should change names each way in Arabia:
Arabia/Turkey - America
Makkah - Mecca
Al-Kuwait - Kuwait City
Bagdat - Baghdad
Al-Basrah - Basra
Ar-Riyad - Riyadh
Al-Qahirah - Cairo
Al-Hartum - Khartoum
Al-Iskandariya - Alexandria
Masqat - Muscat
England: Yangon/Dagon should become Rangoon after takeover. Thebes/Niwt Rst/Al-Uqsur should become Luxor after takeover.
France: Frankfurt should become Francfort after takeover.
Germany: The following cities should change names each way on the German-Russian border:
Russian - German
Kaunas - Kauen
Vilnius - Wilna
Szczecin - Stettin
Poznan - Posen
Independent: Pagan should be named Dagon (the home of Shwegadon Paya).
Khmer: Dagon should become Yangon after takeover.
Russia: Kiev should be transliterated as Kiyev. Reval should become Tallin after takeover. Also see Germany.
Spain: Mbanza Kongo should become San Salvador de Congo after takeover.
Other:
Batavia should become Jakarta after takeover by non-Dutch.
Mombaça should become Mombasa after takeover by non-Portuguese.
Alt-History
Arabia: Tenochtitlan/Mexico City should become Al-Maksik after takeover.
England: Mbanza Kongo should become Congo City after takeover.
France: Mbanza Kongo should become Congoville after takeover.
Netherlands: Fort Vredeburg in Java should be changed to Batavia - it's far more interesting to be honest!

I've seen them conquer Cuzco, Tikal and Tenochtitlàn several times with the conquistador event and thought it's uninteresting that the names remain exactly the same even after conquest.