Corsets were around as a staple of women's clothing for centuries. They even outlasted powdered wigs by centuries. Completely gone now. What makes you think that heels will fare any better? They're going the way of the dodo because something else has cropped up which completely upended the cycles of fashion. Modern day feminism. It HATES ANYTHING feminine. We have reached the weird zeitgeist where women don't want to wear heels because they are feminine, and feminism teaches them that anything feminine is bad. But guys wearing heels, as in the gender destruction ideology, that fits right in there. And again, all those women who never learned to walk in heels in their formative years aren't going to magically pick up that skill. Even the whole designer heel craze of the last years was just a craze of the upper and upper middle class women, not of women in general. In general it has been sneakers and those accursed army boots. Hell, even in p0rn I see more and more women wearing sneakers.
Heels are going the way of the Western. That genre which once dominated Hollywood movies for decades since its beginning. And then one day it was over. And occasionally we still get a western, maybe two, and the trades call it return to the genre. And then it dies out again. So it will be with heels. The vast majority of women will stop wearing them or think themselves adventurous wearing 2" chunky heels. Some will still wear 4" or higher, but they will be mostly in certain professional spheres, like entertainment or law. Without young people taking up heel wearing there is no cyclical return. And I don't count 2" chunky heels or flatforms as heels.