Disney Cruise Lines has updated the Temporary Cancellation Policy Update since it was first released on March 6.
All Guests scheduled to depart on the Disney Magic between now and May 8, 2020, and the Disney Dream, Disney Fantasy and Disney Wonder between now and May 31, 2020, can change their reservation up until the day before embarkation and receive a 100% cruise credit to be used for a future sailing within 15 months of their original sail date by calling us at (866) 325-2112 or (407) 566-3510 or contacting their travel agent. The credit is non-refundable and standard prevailing rates.https://disneycruise.disney.go.com/guest-services/advisory/
Originally it was only the European sailings that had 15 to rebook. I think the change will make it much easier on guest trying to reschedule their vacations.
Check here for more information about the cancelled cruises and the cruises to and from Vancouver.