[toast0]

USB-C has almost entirely replaced USB-micro B on mid-high end phones.

The other end of the cable is much harder to replace; there's so much stuff with a USB-A that going USB-C on that side doesn't seem worth it, unless you're deep into Apple.

It would be very unApple, but they could keep a lightning port on one side, and add a USB-C port on the other and kill the lightning port later. Maybe not entirely unApple, they did go through a transition from firewire to usb on iPods with models supporting both for some time.

[Tagbert]

Apple’s recent phones come with cables with USB-C on the power end and Lightning on the phone end.