The thing I'd like to see ProChannel do is to merge itself int the track, and for the track to widen itself to that width. Then, merge the FX bin into the PC, and show thumbnails of each of my 3rd-part plugins. They don't have to be functional, but it the thumbnails were, that would be even cooler. Then, we could have miniaturized versions of 3rd-party plugins.
On the flip side, I think (suspect, more likely) that the effects in the ProChannel are not totally transparent, including the EQ. I don't like that thought, but I get the feeling that could be the case. Is the PC EQ true-bypass when it sits at its default settings? AFIK, nobody has corroborated or denied that. Obviously one could disable it via the blue button in it's upper corner, but what about when it's enabled, but not set to boost or cut anything?