Hi, Melody!
Welcome to the Disney Parks Moms Panel! If you're a planner like me, waiting until December to have a resort hotel reservation on the books might not have you in happy-Disney-vacation-mode! Luckily, should you choose to make a reservation now, and a eligible discount be released at a later date, you can absolutely modify your reservation to reflect the promotional pricing.
Keep in mind, not all Walt Disney World® Resort hotels are included in every promotion, so your reservation modification could result in the need to switch resorts in order to take advantage of the special pricing should Disney's Caribbean Beach Resort not be available. Additionally, all changes to your reservation will need be made within 30 days of your arrival.
Melody, did you know Walt Disney World® has a deluxe-level resort dedicated to our military personnel and their families?
Shades of Green® resort is located near Magic Kingdom and just a short walk away from Disney's Polynesian Village Resort. Select the highlighted link to read more about this patriotic option!
Another tip, Walt Disney World also offers
military discounts on theme park tickets, too! Another great option if you decide not to go through your local MWR or include them as part of your vacation package.
I hope this is helpful in your planning, Melody! Please let me know if you should have any additional questions.
Saluting you!
Faith