What I like from this design is that while futurist, it looks structurally quite similar to an "natural-grown" South American or European city, with dense neighborhood centers instead of a single downtown area. But yeah, the probability that we'll see this city in this specific layout is quite low. Maybe a smaller version. Best "planned" cities are probably those who don't want to make everything different, but improve small details like "walkable" neighborhoods and above all the distribution of green spaces. So Brasília and Abuja (and probably The Line) did everything wrong, but St. Petersburg, Karlsruhe. La Plata and Washington D.C. did at least something right (all older planned cities, so the bad reputation they have is very much affiliated with the 1950s-1980s car-friendly design trope). For Eko Atlantic, this is more of a "business" neighborhood than a full city. Very similar to something like Puerto Madero in Buenos Aires. Seems also to develop very slow.