If I'm the band and management and label I am trying to contact Stallone/UA pics and pitching The Place In Your Heart for the soundtrack. If not that, than SOMEthing from Generations.
I can write TPIYH into Sly's script treatment as either a training montage backing track or a moment of truth realization/reflection alone moment (like the car in Rocky 4). It centers around Rock alienating a loved one, be it Adrian, his kid, Paulie or someone else with his decision to re enter the prize ring. In a cliche (hell what's a Rocky without a handful?) , he's doing what he's gotta do, but all the while with this person on his mind and the need to get back to the place in their heart....Splice in scenes from the past films (or set it against scenese of him working out) all the while the song's playing over the film. You have a big, dramatic, feel good crowd worker of a sequence.
Apparently Survivor's (granted, they have a track record with these films) got a new one called Fire Makes Steel in the running to be the theme song of the movie. Why not have JRNY try and horn in on it, too?