I sure hope not. Wireless charging is very inefficient compared to wired (slower charge time, bigger external battery packs, environmentally wasteful). Wireless headphones mean another thing to charge and of course connectivity issues that largely don’t exist with wired.

Current iPhones are already rated for IP68 water resistance (6 meters depth for 30 minutes), and “fully sealed” would probably require removing the microphone and speakers, so I don’t really buy that argument.