CPU Expansion Option?
I've seen quite a few demonstrations of external batteries to keep the Quest operational longer, which people have worn on the back of the head strap. And with the USB-C cable you can connect the Quest to your computer and side load apps, etc. Would it be possible to use the USB-C connector to support an additional CPU for rendering purposes, that could be worn on the back of the headset or on a waistband? I realize this would be getting away from being completely tether-less but if the tether is local to you, does it matter? My understanding is the displays in the Quest are comparatively high resolution but many point out that the CPU is the bottleneck for higher resolution, faster frame per second, images. This would allow one CPU per eye, perhaps doubling the rendering capability? I'm really impressed with the Quest but if this were feasible and it opened up a larger catalog of games/experiences, that would be all the better.

-
Gadnos commented
This is a great idea. I could see an official accessory that would that could be required for some higher end games or to access improved graphics for existing games. This could also act as a counter weight. Basically attaching something the size of a cell phone to the back that has a modern cell phone processor and battery.