I'm still going to try,
Yes I'd love a VPForce Rhino, and am following that with intrest, however sinking 1k into something I do not use that often seems a bit of a waste... If you ever have flown in real life you know nothing beats the real thing, so for me the g940 does the job sufficient, and I hate ewaste.
I did also find these clues in reddit however the guy behind it and the firmwares seem to be gone so: https://www.reddit.com/r/ReverseEngineering/comments/21kgtc/comment/cgh6lmc/
I found someone on github that reverse engineered the g27 which uses a surprising lot of amount of the same components, so I bet the g940 is very similair. Not only will this likely keep the G940 useable but also the G27.