He's got all of the measurables to be a 1st round draft pick - if he's able to improve in another couple of areas. He could be awesome. Or he might decide not to. Or he might decide to go somewhere else and put in the work there. Whatever.
Like you - I hope he stays. I also hope that getting benched lights a fire under him and that one of the conversations the coaches have with him to end the season includes what he can do to get back into the starting lineup.