If NFL teams need a blocking TE they use an extra O-lineman. While I'll root and hope for the best for E.T. - I don't think he has a chance to make a roster in the NFL.
Has Jamiel Showers been performing at the combines? Given the terrible quality of backup QBs, he has a better chance of catching on to a team. It's amazing how many QBs have "0" college experience taking a snap directly from the center.