Now through September 25th, 2021 Disney World is offering a special offer where you can get 2 extra days added to your Disney World ticket for free when you buy a 4-night/3-day room-and-ticket package at select Disney Resort hotels, valid for arrivals most nights January 8, 2021 through September 25, 2021. You can find the official details by following the link below.
Offer Details
Valid Travel Dates
Arrivals most nights January 8, 2021 through September 25, 2021
Length of Stay Requirements
Minimum – 4 nights
Maximum – 14 nights
More details can be found here https://disneyworld.disney.go.com/special-offers/2-extra-ticket-days/