Thank you for the suggestion.
Concerning the contribution of code for adding Bluetooth support - if a company would want to allocate some time and a person for this cause, would there be someone who can guide them in the process? Perhaps the challenge could be broken down into smaller components?
Assume that you get a rational human being at the input, they know various programming languages (including C and C++), but have no experience with RIOT whatsoever - would this work out?