Royal Caribbean has announced that their second "Perfect Day" private island will be in Vanuatu in the South Pacific. I'm excited to see what they do with it and how it will differ from CocoCay. I assume it will mostly just be their Australia-based ships that stop there, unless they add new long south pacific itins that depart the US when it opens. Here's the article I just wrote up based on their press release about it.
https://cruiseline.com/advice/what-s-hot/news/royal-caribbean-announces-second-perfect-day-private-island