At OKW, I think with a refurb they could do it - in the 1-bedrooms, use the solid wall to the right of the windows, where the sleeper chair usually sits - it's plenty of wall space to mount the murphys - then a section of couch and the sleeper chair could relocate to where the large couch units are now.
I personally would love to see the studios at OKW also convert to 1 bed and the murphy - if needing both beds I definitely preferred the two beds over a bed and a sleeper sofa - but the murphys are as comfortable as a bed, so that would at least give a little more seating comfort in the studios when the beds aren't in use...my only real annoyance with the OKW studios is having to sit on a bed or in a hard chair - no couch option.
I recently stayed in one of the Boulder Ridge 5th floor units post-refurb that had the sofa beds still, because of the sloped roof design. Didn't matter in that case since no one needed that additional bed - but it was still strange to see the fully refurbed room and not see a murphy there.