How about: Take what we learn from new development so that we can improve the older, lower-level stuff, and strip away some unnecessary levels of abstraction?
Yep. I did some swift development recently and while I absolutely loved the language I was struck with how much worse the uikit APIs are compared to react.
There's nothing special about javascript the language. The nice thing about web development is that the really fast framework iteration cycles. And everyone complains about them, but as a result we have some fantastic APIs for UI development in javascript land now. (Eg, react.)
What I want to see is someone port those lovely abstractions across to native languages. For example, a port of choo[1] to swift on top of uikit would be gloriously fast, efficient, small and easy to work with.
Sure, but it's also more likely to make my laptop with 16 gigs of RAM, 8 simultaneous threads and SSD feel more sluggish than the one I had 10 years ago.
Edit: I'll add, I frequently see people say that Windows XP was the best OS ever made. Why the rose-tinted glasses? It was the tail end of the era when hardware was getting faster, faster than software was getting slower.