I just think that people who are great at something dont want to come back into it not being on top. Michael Jordan is a prime example. He was away too long before coming back on that final return and not only did his age show, but his abilities had changed because of it.
I dont think RC would be much different. At least supercross/motocross is a sport where one guy trying a comeback isnt going to effect others like basketball or football.
But I dont think deep down RC would be racing to make the fans happy. He wouldnt have fun if he wasnt VERY competitive. He would want to win. Idont think he could consistently to be honest, or consistently be on the podium. RV and JS are fast. Dungy, if healthy is fast. Not sure if RC would consistently run with them.
Unless he needs the money, I doubt you will see him on the starting gate. Sure I would love to see him get back on the track, but I dont see it happening.
Who knows....he may surprise me and get right back near the top.