Hey Jan, thanks for the quick response!
I'm still studying what is possible and what is not within the scope of the SDK. I've read about some limitations where a new aircraft can only be implemented with existing elements of avionics. Overcoming this could open way to custom aircraft like the 737-800. Also the fully simulated propulsion and power control (APU, power, electrics, hydraulics, pneumatics, avionics, all acting depending on each other) in all aircraft would be a spot where the community could help in if the SDK makes this possible. E.g. subsystems of the Airbus are well documented and accessible so if there would be a safe (does not risk performance and stability of AFS2) means of scripting (e.g. lua/python/etc.?), any aircraft-specific behavior could be be included to an aircraft.
I would never think about a DLL project if all of these could be be solved via TMD.
Taking part in such an extension of e.g. the A320 would be awesome.
Thank you again for taking your precious time to answer and for your positive approach!