New Edit in Photoshop option: copy as psd withouth adjustments

Question

This feature would be a 4th option in the "edit in photoshop" context menu. It creates a photoshop file with the unmodified image data (before any adjustments in lightroom) but as a psd file in 16 bit depth and with the specified colourspace (usually prophoto). The user edits the image in photoshop and saves it. Lightroom copies the adjustments from the source photo and pastes them, as adjustable lightroom adjustments, onto this edited psd file.
This workflow makes sense mostly for jpegs (as raw files always have to be developed in some form when you open them in photoshop). I often need to retouch a couple of fotos from a large collection. When I edit them with lightroom adjustments, I loose the possibility to easily change the colour tone etc in lightroom (of course I can make changes in lightroom but the sliders are reset to 0 because lightroom treats this as an entirely new image). It would be better if I could edit the original image data in photoshop and have lightroom apply the adjustments as metadata, not burn them into the psd file before opening. From an image quality point of view it is often better to do all compositions, retouching etc on the original data, then colour grade them later so that the changes "blend in better" (this is the default way to do it in motion picture film compositing). I would appreciate it if lightroom would offer me this workflow option.

Answer 1

Jeff,
I think you misunderstood the use-case I am talking about. I perfectly understand that this doesn't make sense for raw pictures. It does, however make a great deal of sense for jpegs.
I am not asking photoshop to become a parametric editor or Lightroom to become a pixel editor. What I want is for lightroom to do what it does best (non destructive editing) and photoshop what it does best (powerfull destructive editing) but without having to "chain" these steps together in a given ordern (develop jpeg in lightroom -> send it to photoshop, all non-destructive edits are burned into the new psd file -> edit in in photoshop -> send it back to lightroom, the non-destructive edits of lightrooms are burned into the pixels and cannot be changed anymore (if I had made the image warmer I don't see this in lightroom anymore because the sliders are reset to 0).
What I propose is merely for lightroom to be able to send unmodified jpegs to photoshop and apply the non-destructive edits to the copy. This way, I can do my compositing / editing in photoshop on the original pixels, then keep playing around with the sliders in lightroom.
This is a bit hard to explain just with text, I hope I could make my point clear. Also, the current option of "Edit a copy, without lightroom adjustments" is nice, but only halfway there for two reasons: First, it doens'nt automatically copy the non-destructive edits made to the original image to the new copy, and second, for jpegs, in this case I want a psd file to be created not a jpeg as is currently the chase. Why? Because I will be working with layers in my edit and if I want to be able to save the file and have lightroom notice it. However, if the file in question is a jpeg, I can't save my composite to this file format without loosing my layers, so I have to change the fil format to psd but that changes the filename that lightroom was keeping track of so now I have to rescan the folder in lightroom which is quite annoying form a workflow point of view.
Please let me know if I can explain anything in better detail. I really do think that for a jpeg based workflow this option would make a great deal of sense.