There is ample board space on the Pico... Also note that there are a number of other integrators (Sparkfun, Adafruit, even Arduino) who are making custom board

There is ample board space on the Pico... Also note that there are a number of other integrators (Sparkfun, Adafruit, even Arduino) who are making custom boards. I wonder if one of them may even hack in some sort of wireless module.