I had long thought that Apple was about to have a big shift in native UI components, because for years they have been shipping first party apps that have card based interfaces that progressively disclose complexity as the card is pulled up from the bottom. Maps and Music are the most obvious examples of this paradigm, but ever since iPhone 6 Plus, a back button in the top left has been a bad paradigm (although the system wide swipe-from-left-edge has helped).
I've been pretty disappointed that Apple has not pushed harder in this area, has kept this first party by not updating native components, and has not updated their HIG. We've had to move to third party libraries. It has been at least 3 years since they started using this paradigm.