I wouldn't rule it out, but I don't see him going back unless he wants to stop doing mornings on 700 ... and John Sadak wishes to reduce his schedule (which I don't see someone as young as he is doing quite yet). Marv Albert went back to network TV after his issues, after all, so that redemption could happen to anyone.
I think Thom did roughly 100 games in his years with the Reds but I think that was mostly because of his Fox duties. If he were on TV, it stands to reason he would work with both Brantley and Welsh at some point.