I don't think the hotel rates would be affected in the same way. It was the tickets and
Genie+ rates that I was worried about, since we know those are going up. In my original email that I received when I booked the package, I had to scroll way to the bottom to the tiny print "Package Terms & Conditions" section under a "Prices" sub-header to see that.
I happen to also have a room-only res for our last night, so I just looked at that. This is the relevant tiny print:
"ROOM RATE REVISIONS FOR ARRIVALS THROUGH DECEMBER 31, 2022
Room rates for arrivals on or prior to December 31, 2022 are guaranteed (except for changes in tax rates or other governmental charges) as long as the room reservation is not changed. Disney reserves the right to cancel or modify a room reservation (including, without limitation, after the room reservation has been confirmed) if the room reservation includes or resulted from a mistake or error of any kind including, without limitation, a mistake or error in the rate or room type, or where it appears that a Guest has engaged in fraudulent or misleading activity in making the room reservation."
So I think they won't change the rates for room-only reservations in the same manner? But that is only a one-night res, so I had to pay in full upfront. The above is the section you'd want to look at for your multi-night stay to confirm, I'd guess.