I can envision an Apple Vision Air 4 or 5 years from now that's a pair of glasses with transparent micro OLED lenses. OpticID technology embedded in the interior lens frames. 2 wide angle cameras set in the top corner temples (like Snapchat's Spectacles) to track your environment and your hands at the same time. LIDAR and IR in the bridge of the nose for depth perception. Battery tech in the temple arms behind your ears. An onboard future R1-type chip running processing for all the sensors. All paired to an iPhone running a future M2-type chip that powers the computations for the headset.
I envision that as the future Apple wants to deliver, and I think they can. But I believe the Vision Pro is to get society comfortable with the idea of a screen in front of their eyes, cameras on our faces, and acclimated to a new way of interacting with this sort of technology.