I'd imagine it'll work through something like Steam Link like the Quest line of headsets do. Which is still nice, but that means for me trying to invest in networking gear that may or may not work. ๐ฉ
(and I've tried powerline, I've gone through three of those things, they all have a habit of disconnecting unless I ping my router. Someone on Twitter suggested that I rewire my entire house as if I can afford to do that. ๐)
It might be "just USB-C" but it also does things outside of the standard. It asks for a set amount of power not part of the USB-C standard, actually it might have implemented VirtualLink which is considered a dead standard. Not to mention that NVIDIA GPUs also stopped having a USB-C port.
iVRy, who has hacked the PSVR1 to support PC, is in the process of hacking the PSVR2 and even they state that Sony's solution might be just streaming to the headset because of the issues with implementing direct USB-C support. There might be wired streaming (similar to Oculus), though it's still early days.
I get the hype (I have the headset myself) but I'm definitely going to temper my expectations until Sony releases more info on it.