Brock is a valuable player, but probably as a spark off the bench, playing 12-15 min in most games, if you have a good team. I don't know if the Thelwell possibility is real, but we will need to add another PG either way IMO. I suspect that if Harding left, it would increase the chance that Owen will also be gone.
Hard to have any idea what is going to happen in the off season, but there aren't a lot of fans who want Fran back. Not sure what will happen with any of the players whether Frans stays or goes.