Couch was given real opportunities in Green Bay (cut on final cutdown day) and Jacksonville (played in preseason and then cut). He also had workouts with Chicago, Cincy, Pittsburgh, Tennessee, Miami and Houston. I may have even missed a team or two.
Losman is currently on Seattle's roster.
So I guess my answer is "Yes. He will get a shot like Couch or Losman." In fact, he'd be extraordinarily lucky to get as many shots as Couch. Now neither you nor I know what, if anything, he will make of those opportunities. But I fully expect he will get one or more.