You needn't pry it loose from Adobe, you merely need to write down what you know of DNG, write down some more material clarifying that, and run with the result.
This is something which I have pointed out several times, and which none of the loudest complainers seem willing to actually do. The great thing about standards is that anyone can write one. Just write it and pull together a coalition of influential people to get behind it. Everyone necessary for this is already here in this thread on this web site. And yet, oddly enough, they seem to prefer that someone else do the work.
Well, me too, to be honest. I hate work.