It would be swell if you would consider designing an access to an ESP-12 processor. The low-voltage requirements and capability to program and drive WiFi makes these boards incredibly flexible for projects. Being able to interface into the greater Tiny circuits would be very handy.
I do realize that the entirety of the current design leverages Arduino. But it is something that maybe could be integrated if not substitute for some of the Arduino Interface in the component stacks.
- Keith