In November I have been working on this challenge. I have come up with four new island settings:
They are inspired on various tropical archipelagos around the world. Some landscape elements are new, like splashing waves on the the outer fringes, and slowly flowing lava on steep volcanoes.
There is still a lot of work to be done. Right now, depending on RL projects, I think they will be available in the first week of January 2013. I will have full sim surround, half sim surround, sim edge and sim corner environments available then, probably all in Silver and Gold editions.