I received a response to my email:
In the afternoon of January 21, 2011, it was communicated there would be a change to the Mexican Riviera cruises. It was decided to modify our 7-night Mexican Riviera itinerary aboard the Disney Wonder by replacing calls to Mazatlan with an additional call to Cabo San Lucas until further notice.
We continually evaluate our itineraries and we believe this change will provide the best family vacation experience for our Guests. This decision was made in part due to the changing environment in Mazatlan and our continued focus on making the safety of our Guests a top priority.
Your itinerary for your cruise on February 20, 2011 has been changed to the following:
Sunday - Los Angeles
Monday - At Sea
Tuesday - At Sea
Wednesday - Puerto Vallarta (Ashore time is 7:30am and onboard time is 7:00pm)
Thursday - Cabo San Lucas (Ashore time is 11:15am and onboard time is 7:00pm)
Friday - Cabo San Lucas (Ashore time is 7:15am and onboard time is 1:30pm)
Saturday - At Sea
Sunday - Los Angeles
Please be aware, that Guests ashore and onboard times can change without notice.
Next, dining attire varies by venue or theme night on your cruise. In general, most meals are "Cruise Casual"-- jeans, khakis and capris are permitted; however, we ask that Guests refrain from wearing shorts, swimwear or tank tops in the dining rooms.
Below is the recommended attire for your cruise itinerary and is subject to change:
*Nights 1, 2, 5, 7: cruise casual
*Night 3: "formal night" - formal wear for men: tuxedo or suit; for women: gown or dress
*Night 4: pirate night with deck party - cruise casual or bring your best pirate outfit!
*Night 6: "semi-formal night" - semi-formal wear for men: suit/jacket; for women: dress or pantsuit.
Lastly, Port Adventures will be available to arrange for both calls to Cabo San Lucas. At this time, Port Adventures are unable to be reserved online for the additional stop at Cabo San Lucas. We are in the process of adding these to the website.
Please be assured, if you pre-reserved a Port Adventures for Mazatlan it will be removed from your reservation.
In addition, per the Terms & Conditions,
Disney Cruise Line may with or without prior notice change or cancel any scheduled sailing, itinerary or call at any port, and will not be liable for any loss incurred by a Guest as a result of the change. Thus, compensation will not be offered.
I hope this information has been helpful. If you require further assistance with any other inquiries, please feel free to contact us.
We look forward to sailing with you.