One thing that is obviously changing is the preference for disc brakes, more gears, integrated stuff, electronics, and power assist.

It's funny how every new generation comes along feeling superior in environmentalism, and minimalism, and immediately adopts all kinds of crap that every person before them did without. I am sure I spent huge blocks of time without any draw on the grid at all. Used no disposable products. I think the big changes will be somewhat generational. People born today are going to think anything less than 11 gears is crazy. Progress will occur but not by changing anyone's mind who is alive today.