The best I can tell from the drone images and other images I have seen show Club O's Beach Chalets to all appear to be standing, all of the Garden Chalets appear to be standing, about four of the nine Waterfront Chalets appear to be still standing, only two of the 15 Mini-Suite buildings are standing and all 17 the Studio buildings are indeed gone. Edited to add that all of the Mini-Suite Deluxe buildings appear to be standing.