Looks like Diamond benefits have been watered down a little bit. Welcome amenity is no longer champagne and the treat is now just a standard fruit basket (In-villa VIP welcome bottle of wine and fruit basket).
I was also asked to pay for an upgrade as a Diamond, whereas it appears others were upgraded previously for free.
One-bedroom Overwater pool Villa to One-bedroom Beach Pool Villa US$442.00 per night (Inclusive of tax)
One-bedroom Overwater pool Villa to One-bedroom Overwater Suite with Pool US$593.00 per night (Inclusive of tax)