I see a significant population of younger people fulltiming. Homeschooling is much easier and jobs are mobile. Younger folks have seen up close the downside of home ownership. If you have tech job and the choice is house around SF or an RV, the RV looks pretty cheap.
Tech is making it much easier to downsize. Replacements for almost anything comes in 2 days via Amazon. People dont watch TV, they don't really use cable. You don't need a huge desktop. The biggest impediment is connectivity.
I think there will be a move to lithium, which will get cheaper. With power more portable, there will be far less need for the full hook ups, except where AC is important.
There will be less of an emphasis on trailers as the lower cost alterative.
I think the younger users are going to want sleeker interiors with less bordello decoration. This is the apple generation and they care about design.