As bad as the 49ers are, as desperate as they are for qb help, as well as kaepernick played at times last year, there is no interest from management to bring him back.
As a long time 49ers fan who was in the bay area during his tenure, it wasn't just his stagnation as a player or the distractions. He was a pretty unlikable face of the franchise. His weekly interviews were smug and condescending and thin skinned.