I would’ve thought that if Neal’s Warning were a soundtrack from S3 that it would’ve appeared on Mark Isham’s website, where he just released a bunch of other songs from S3 and S4. I’m going to hold off on my judgement until I see how this all plays out, but I wouldn’t want Neal to be played by anyone other than MRJ. Yet, I want MRJ to be happy and fulfilled as an actor, and I don’t think a return to the show would do that for him.
He only released a set few tracks from Seasons 3 and 4, as there are plenty of tracks off the top of my head that weren’t included there. He also didn’t include plenty of stuff on the Season 1 and 2 soundtracks.