Well, I cannot say I am not underwhelmed. Ok, making them exclusivelly settled on coast would be too much a handicap, that I can understand what they did. Besides their loyalty control on coast of the same continent is good way of doing that, without much issue. Maybe if we could have sea's names that would work better and would be historically accurate, as on TSL maps the Mediterranean is surrounded by 3 continents.
I was expecting more, though. The Cothon would be a good unique replacement for the City Center. They could make the same mechanic they used for the Palace change, making the Cothon an UD that was buildable from a city project, converting the City Center from a coastal city to the Cothon. Doing that would make cities able to build Harbor buildings + City Center buildings on the same District - and combining 2 districts on one is good, as that would free space for other districts. Maybe that would be harder to implement on game codes, but it would be way more interesting.
As it is, I just hope they make things earlier available for Phoenicia. They could be able to embark settler and workers at Sailing. Cothon should be available at Sailing too. And Celestial Navigation without the Cothon would be a forgettable Tech, so it should make embarked units able to go to ocean tiles (that would be a nod also to Phoenicia being the more peaceful counterpart of Norway, as Norway gets the ocean passing ability at Shipbuilding).
But I was really hoping for something more unique. I guess the other civ they said would get a huge malus to balance their bonuses was Mali, besides the Maori. As the crazy uniqueness of the Maori was revealed too early, it built up the hype, but the other civs were way less unique as the Maori and nothing was on par - and so I am really underwhelmed in the end.
And, last but not least, if nothing of the above changes, I really hope they make Writing free, and not only its Eureka moment. Unless they changed the Eureka for that.