Let's say the guys comes back, takes a year to pick things up but then just starts to bulldoze everyone.

1st- how awesome would that be to watch! He would't even need a number, you could identify him on the field just by sheer size alone.
2nd- If Ziggy wasn't enough to get a Hollywood movie, Mo would have to be... maybe they could be sequels to each other... either way, Mo would be a CFB national topic. It could be awesome.
3rd- Think of all the chumps out there who would say "see! these Mormons go out on their 2year missions and come back as men among little boys and it is just a completely uneven playing field..." That would be hysterical to listen to because you know it would be fodder for that discussion (looking at you Mark May).

I still think the chances this kid comes back and makes the team are small but I'd love to see it!