Yzman
Deity
Based on Firaxis' post on the upcoming update Urban Centers are indeed getting a big update. Carthage (and anybody else, but that's who we're focused on here) can now use that specialization to purchase libraries, monuments, baths, and maybe some other buildings. That strikes me as a big positive for Carthage and should make the science legacy path a lot more achievable.
Its interesting because now Carthage will actually have MORE ways to slot relics than a typical civ no?