The current wireless technologies are not even near to what they'd need to be (speed, latency etc) to completely replace the cable. Not to mention all of the accessories we currently CAN use (in addition to carplay in all of those millions of cars that only support the cabled version). "Can", as many don't. I love being able to use for example iRig. Works with USB and lightning just the same, but I cannot imagine a wireless version that would actually work the way it should. Maybe at some point in the future, but right now I've no use for a portless iphone.
Edit: Forgot to mention that I'm already tired of having to charge 10+ devices. I don't want to have to constantly charge half a dozen accessories, too.