I'd like to see some more European-themed zones. Pretty much all we have of that theme is Ishgard - the city alone, mind, the zones of that expansion are all basically wilderness.

We keep getting small snippets and teases, but they are always either already destroyed or just a dungeon environment, like Alexandria.

I'd like to explore the Far North isles where sea wolf Roes are from next - that would be a prime location for some central/northern European themes and locales.