Do you think all those houses that the Boomers currently live in will remain empty, and therefore the housing prices will fall?
If you think that, I have a lovely bridge for you.
House prices are caused by supply and demand. The population is constantly growing, Millennials, Boomers, Gen-Xs, and all. There is no way that house prices will fall to any great extent because there is always a shortage of housing. A couple of Boomers die, so what? Their places, and a lot more, are taken up by people coming into the country, or being born, every day.
And for every thousand extra people, we're going to need an extra 400 houses.
To free some resources maybe, housing for a starter.