Constantinople and Rome continue to have only one leader: the Orthodox Ecumenical Patriarch Bartholomew in Constantinople, and Pope Francis in Rome.
Don't forget about the Armenian Patriarch of Constantinople.
I've always been curious about Pope Benedict XVI surrendering the title of Patriarch of the West. I've once read an opinion piece from a traditionalist Catholic website that the push for synodality could very well lead to Latin Patriarchs gaining real oversight powers. The closest thing to a Latin Patriarch with such is the Latin Patriarch of Jerusalem who is automatically the president of the Latin episcopal conference in the middle east. Even if the apostolic churches were united, the Latin church is too big to be a single patriarchate. If continental/regional synods were to become a permanent thing in the Latin Church, the existing Latin Patriarchal sees could be given new responsibilities. For the Latin Patriarch of Jerusalem, the episcopal conference of the middle east can be upgraded to a synod. For the Latin Patriarchs of Lisbon and Venice, western Europe could be divided into two regional synods. For the Latin Patriarch of the West Indies, it could be detached from Spain and be awarded to a bishop from the Americas instead, which would also have its own synod. For the Latin Patriarch of the East Indies, he could head a synod in the further east. Not sure about Africa though. There are barely any Christians left in North Africa to warrant resurrecting the see of Carthage and it would be un-ecumenical to resurrect the Latin Patriarchates of Alexandria or Ethiopia.
