I was thinking about possible underlying themes for coming expansions as I followed a discussion about cantha on the official Forums and came up with some pretty standard ideas, and I'm interested in seeing which of them may be more popular then others. I do know that some people on a single website are in no way representative, but it is interesting nonetheless.
If you want me to elaborate on anything, feel free to ask.
If a thread like this existed already, I'm sorry, I didn't see it.
Also, I forgot to include a Caribbean theme, but I'm not sure how/if I can edit the poll.