Is the North ever going to have comeback demographically ?

[Sol]

There are parts of the North that are growing at the moment- see most of the West. Though that's obviously not what you're talking about.

[Sol]

I think some parts certainly will. For example, the Great Lakes states seem primed for a comeback in 40-ish years, on a account of being fairly affordable alternatives to the overpriced dense cities of the Northeast and Northwest. Also retirees.

I think the south seems fairly resilient population-wise, but the southwest could see some big losses.