Hopefully not with the mountain crossing ability which is really much better as a GG ability. I can see why Carthage is represented seperately from Phoenicia, it fits a warlike state much better, and a group of city states (although from what I understand Carthage,Utica. Gades etc were city states anyway, Carthage wasn't an empire in our sense of the word anyway) is much harder to fit into the Civ model anyway. Civ doesn't handle city states or dynasties or nomads well.
What makes Carthage stand out in Phoenicia are:
1) They had a land-owning aristocracy. Phoenicians in the Levant had kings and republics but didn't have that much land to squabble over.
2) Their population was mostly Libyan, with the leadership exclusively Phoenician. Over time there was some intermingling and a significant population of Liby-Phoenicians arose.
3) They were able to develop in peace due to their prime location away from the squabbles of the Levant.
4) They were more militant city state that aggressive expanded their territorial holdings. Phoenician settlements were typically far more peaceful in nature.
5) Because of their location and subject populations, they were more capable of fielding larger armies (including mercenaries) enabling conquests in North Africa and Iberia.
6) They faced Rome and almost brought it to its knees, and they are forever memorialized in the eyes of the West.
7) They have more writings about them. Phoenicians in general were notoriously secretive.
8) Hannibal. Nuff said.
Ultimately I too understand why Carthage may be represented separately, but I vastly prefer it when it isn't, because it is ultimately ALL Phoenician history, just like Greece is represented as a whole and not just Athens or Macedon. It's not called the Athenian civilization. It's the Greek one.
Speaking of, Phoenicia was very, very similar to Greece yet the latter had Macedon as a Hellenistic overlord still representing them at times, yet Carthage can't also represent Phoenicia as a whole? It's an interesting dissonance, most likely caused by Western historical biases.
I view their move in Civ6 in a positive light, with both Greece and Macedon being separated and Phoenicia united.. I hope they continue the trend in Civ7.