I'm only talking about the limited power onboard WiiM Mini.And how is that related to USB port?
You wouldn't necessarily need a USB port anyway... measurements could be done on PC/laptop and sent over network to the processor.
It's done this way with other Dirac products.
Anyway this is all fantasy land in my opinion.
More likely is miniDSP (and others) adds LinkPlay streaming module.
Lets see !