Disney Cruise Line is closely monitoring Hurricane Melissa and has made itinerary changes for the Disney Treasure sailing, which departed on Saturday, October 25th, and for the Disney Wish sailing leaving Monday, October 27th.
The revised itinerary for the Disney Wish is as follows:
Saturday: Port Canaveral, Florida
Sunday: Day at Sea
Monday: Day at Sea
Tuesday: Cozumel, Mexico (previously Tortola, British Virgin Islands)
Wednesday: Day at Sea (previously St. Thomas, U.S. Virgin Islands)
Thursday: Disney Castaway Cay (previously Day at Sea)
Friday: Disney Castaway Cay
Saturday: Port Canaveral, Florida
Any Port Adventures that were pre-reserved in Tortola and St. Thomas will automatically be removed from guests’ onboard accounts, while those for Castaway Cay on Friday will remain as scheduled. Port Adventures for Cozumel and Castaway Cay on Thursday may be booked onboard via the Disney Cruise Line Navigator app or at the Port Adventures Desk, located on Deck 5, midship.

The revised itinerary for the Disney Treasure is as follows:
Monday: Port Canaveral, Florida
Tuesday: Disney Castaway Cay (previously Day at Sea)
Wednesday: Nassau, The Bahamas
Thursday: Day at Sea
Friday: Port Canaveral, Florida
Any pre-reserved Port Adventures ashore at Disney Castaway Cay will automatically be adjusted to fit the revised itinerary.
Should you have any questions, please reach out to your Dreams Unlimited Travel agent.
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Not sure but I think the ships named here should be reversed. The Treasure is on a 7 night cruise and the Wish a 4 night cruise.