Hopefully never any of those 4 options, which would ruin it, in my opinion.
Nothing too drastic according to this article:
https://www.travelpulse.ca/news/cruise/msc-cruises-unveils-enhancement-program-for-ocean-cay
“Guest facilities will be enhanced with the introduction of excursion centres to support watersport activities and island tours, a sea dive and snorkel centre, additional food and beverage outlets and other facilities.
”The MSC Foundation’s Marine Conservation Centre will be built as a base for biologists, coral reef experts and students. It will also house interactive pavilions, a lecture hall and coral exhibition tanks and provide MSC Cruises’ passengers visiting the island with educational opportunities about the importance of the marine ecosystem and the need to protect the world’s oceans.”