No more than now.The transition will be painful for wired CarPlay, since a USB-C iPhone will need an adapter to connect to a USB-A port in cars.
The USB-C to USB-C cable that would be included would be no good since most cars have USB-A ports, and any lightning to USB-A cables would be useless, too.
You just use a usb c to usb a cable . They exist as as usb is a standard not proprietary you can use any
Also, my car doesn’t have usb a , just usb c , so my c to lightning will be replaced with c to c