I highly doubt any RV manufacture will lower MSRP's even when RV parts supplies meet demand. Actual purchase prices will fall once RV demand vs supply is meet.
Used RV prices are high because there's not enough new ones for sale. Used prices will drop when new ones are plentiful.
Right now I'm glad we bought our 2019 TT in 2019 and din't wait another year. Same with our 2019 truck we bough in Sept of 2020. Got a killer deal on trade in and $$$$$ off MSRP of the new truck.
Now is a lousy time to want to buy an RV or truck. While some dealers have lots of RV's for sale, many don't. And the ones that do don't always have what you want. Seems like most of the popular models are in very short supply while the oddball floor plans or even the lesser quality RV's are in greater supply.