With the ACR, I had a look and the ACR path is custom in Adobe. It is not available to plug in developers. There is the ability to add a dialog which we could put our debayer parameters in:
red gain, blue gain, exposure, white point, black point, gamma and debayer method
We already convert from the bayer to 16 bit per component RGB, so there is lots of room for high lights and low light post processing. I like the idea of a poll on the site, but it sounds like there is no point until there are more conversion controls. I would like to know if ACR is a show stopper. If it is, then only Adobe can implement it.
Cheers, James