Even fourth string walkons can dress for home games, but not away games. He'll make the team no problem, if he stays interested. It's up to him. He could most likely help us in blocking FG's, and he might help us in jump ball situations on the goal line too.
I doubt he as a senior would want to workout all summer and fall just to dress out and play on the special teams if even that. I think there is a reason he isnt listed on the roster. If i were him I'd start training for bball and try to make a low level semi-pro or european team