Hi James! Welcome aboard! I would absolutely love to experience Disney Cruise Line's Transatlantic sailing, as there would be nothing better than having so many days at sea to experience all that the Magic has to offer! You're sure to have a very memorable cruise!
Though schedules are always subject to change, right now it looks like you can most likely expect the following dining attire rotation for your 14-night Eastbound Transatlantic sailing on the Magic this May:
Night 1: Cruise Casual
Night 2: Formal
Nights 3-6: Cruise Casual
Night 7:
Pirate Night
Night 8: Semi-Formal
Nights 9-11: Cruise Casual
Night 12: Formal
Nights 13 and 14: Cruise Casual
I hope you are able to book the Palo reservations you'd like, as Palo is such a magical dining experience. Be sure to have one of the chocolate souffles for me! Let me know if I can help with anything else before you set sail, James!