There is a very easy solution for Adobe to take advantage of in the case CAMERA RAW is too hard to implement at the moment. Say you have a raw sequence (TIFF/CinemaDNG/etc).
Adjust one of the frames in photoshop’s Camera Raw and then only import that file into Premiere CC.
You know how any tweaks made using Camera Raw are saved and brought back when you re-open a raw photo in photoshop? Basically do the same thing, only “cross-save” it so that premiere only grabs those tweaks made already in photoshop.
I agree with everybody that a camera raw implementation into premiere CC would be a monster, I’m just presenting another simple idea to implement meanwhile because I want Camera Raw in Premiere ASAP!!