Wouldn’t that be a nice perk!
Nope, not on Disney. I do on MSC (that’s not an abbreviation for the cruise line - but I think it is for the parent company which is an Italian shipping company).
Once you have proven your loyalty with
DCL by sailing 10 times, you are a Platinum member in the
Castaway Club. The main benefits are first dibs at booking cruises when new sail dates come out, earlier booking of activities (Concierge actually has priority), dedicated queue at the port for check-in, and an onboard gathering on long cruises (where there are often a lot of Platinums); the gathering used to include all Castaway Club members - even those with one cross under their belts. And credit for a meal (or $45 of food) at Palo - a for-fee adults only Italian restaurant. Some other little stuff.
As mentioned, those who have discounts are FL and Canadian residents, military, Cast Members (Disney employees) and
recently, first responders, medical workers and possibly teachers. But these offers are to fill the boat and are bookable closer to sale date.
For the rest of us, the closest you will get to a sale is also to help fill the boat. They offer GTY rates - you don’t pick your specific room. And IGT / OGT / VGT rates - which are also buying a non-specific room, just the category of cabin I = interior, O = oceanview, V = Verandah (balcony). But this requires immediate full payment at time of booking, non-refundable. It requires commitment on your part (unless you have an insurance that covers that or Covid refund policies allow it).