Count me as another that would like to see integration between Lightroom and Premiere Pro. I'm an amateur still photographer moving into video and shout a mix of stills and video, with a variety of video capable Canon cameras (S100 and 7D).
I currently manage all media with LR, and would be happy if Pr's Media Browser would read LR XMP files and only show the assets I flagged in LR.
I could always export the flagged assets from LR to my Pr project original footage folder, but that duplicates the files, wasting space.