If it does turn out that X6 is indeed a Great Sea / South Seas / Queen Azshara expansion, the question then quickly arises what the central theme should be in terms of geography, aesthetics, and narrative.
The expansion will obviously have several themes, just like previous ones have had. There will likely be a little bit of everything from the poll above. But each expansion does have one particularly prevalent theme, and this one won't be an exception.
What should that be, in your opinion?