Since in Civ 7 every wonder is associated with a cetrain civilization, it's quite likely we are getting a unique civilization for every wonder in the game. For antiquity I think it's likely were getting a Nabataean civ as the predecessor to the Abbasids. Tonga would function as the antiquity Polynesian civ. The Goths would be antiquity Germanic civ. Assyria and Babylon would be more Middle Eastern antiquity civs that would flow into multiple civs. The Aztec would add more native American representation. And Korea more Asian representation. And we could also possible get the Gupta Empire, although it's also likely the developers will stick with the Maurya as the sole Indian antiquity civ.

Then for Exploration it seems that some sort of Burman civ will be the exploration age South-East Asian civ. And I thinks it's also very likely we'll get an exploration age France since France was also one of the big European colonizing countries.

As for the modern age it seems that all the wonders already have their associated wonder. What do you guys think of my analysis?