I have yet to see enough of Bo over a long enough period of time to have a clue. His "beast mode" has paled in comparison to someone like Henry, who set records in HS and college and won the Heisman. Henry went 45th in the draft.
Right now, assuming no more injuries and a national championship on his resume as a starter, and he is probably a mid-round draft pick at best, mostly because he is going to share carries with a couple of very, very good RBs. He blew any chance of going in the first round against Clemson. Not his fault, but he got hurt in the biggest game of the year and it could be argued that his injury cost Alabama that game. The NFL is a business. They already see Bo as injury prone. Staying injury free for 2 seasons might help that - maybe.