Theoretically, if anyone does 12-bit RAW, with a colour correction, or something else baked into the codec, it should not quality as RAW, when compression ratios are con concerned. Even if most manufacturers have their own version of RAW, with varying colours.
Or
If, there is an element of partial de-bayering within the camera itself, no matter how minor.
I feel Panasonic can CIRCUMVENT this shady Red Patent (reminds me of the stories regarding how how hundreds of Tesla's patents were stolen and registered as someone else's, back in the day), by having uncompressed RAW out, and then compressing it in a tiny module attached to the camera (like the original yagh module, but Much Smaller). The sole purpose of the module, apart from extra battery and memory like mini SSDs, could be for having a compassion SoC (they could throw in a 5G chip for direct broadcast or cloud storage). Compression post recording should not attract any kind of the shady Patent application issues.