I don't believe Bali/Bora-Bora/Fiji/Tahiti/Maldives theme is what we are seeing on the shown hint; however, when Thousand Islands was mentioned, I also thought, like you, that this could be in the Maldive Islands.
I am very hopeful that this theme is in the works for the near future because it is exactly what I've been waiting for and, judging from conversations in world with others, a 2048 water region is greatly anticipated. I'm in a stilt now and I can say that the sand and wave sound are my sanity.
So yes, PLEASE!!! Give us more water, sand, waves!!!!!!!