I can not answer your question, but in the last few weeks there has been a lot of activity on lkml.org regarding the realtek-platform.
Basically „the pro‘s have taken over“ and this is the best thing, that could have happened. I think it is a smart move from realtek to go the „mainline-route“, as it will make their and our lives much easier in the future.
But now we need some patience, because every effort outside of the kernel-development is (IMHO) wasted time.
AaronNGray reacted to Staars in Proof of concept - Realtek 1295