Hard to see it. They can make a big thing out of him beating Burns or Vazquez and becoming the unified lightweight champion with Ring and lineal titles in tow.
They can put him on HBO against lower risk opponents, relatively speaking, in front of a million plus people each time in order to build his profile. Right now you don't see a lot of threat at 135 or 130 for him so from their perspective, why not?
Would be great for the fans to see him mix it up with the 140lb crew, but it's not going to happen.