I think Swan Song on AppleTV does a very good job of painting where Apple would like to head with its technology.
It really depends on how well miniaturization progresses. If it continues on its current trend line, I'd expect iPhone to turn more into a compute that has high-speed networking with wearables (Watch, AirPods Pro). Vision could conceivably come in a glasses form factor by then, but unlikely we'd see Vision contacts like shown in Swan Song. The wearables would likely become a primary way of interacting with content (voice, gestures, visuals provided through Vision) and touch input would become secondary.