After Kodi 18 only devices that conform to mainline/v4l2 standards will be able to run Kodi, everything else will no longer work, this decision was made by Team Kodi and it was actually supposed to happen with Leia but they decided to delay it.
Unfortunately the problem with S912 is that the proprietary GPU blobs needed have not been licensed from ARM and it is unlikely they will be as we have already been waiting over 2 years already.
There will be no hacking to make it work because it simply won’t be possible once Team Kodi start the process of removing the current code we use.
Only time will tell as it’s all conjecture at the present.