So yeah *Spoilers* (Sorta)

At the end of the Heavensward MSQ we celebrate a new era in Eorzea with a new Alliance with all four city-states. Yet there is actually nothing that shows that in game. Once you complete that cutscene, everything is pretty much back to the way it was before we started the MSQ.

Ishgard is locked off. It remains locked off post MSQ. Where logically we should gain an NPC at the airship dock that allows us to fly to the 3 other cities and Gold Saucer. This is the most logical addition post MSQ, but obviously there could/should be more`