I thought the same thing about Sky High when I saw the last episode. Poor guy. He just wants companionship. The last pan-out of him sitting alone on the bench with the flowers was just too much.
I actually don't want to see Kotetsu at The Academy. He definitely seemed to inspire people in a way Barnaby couldn't, but it just isn't him. I have a feeling his powers will increase to exceed Bunny's by far, but I don't know what he'll be when they dwindle and die. I'd like to see him with his daughter, being the father he can't be right now, and living out his life with her. His final moments as a hero will probably win him a season, and then he'll simply disappear.
I hope for an episode after Kotetsu loses his ability and finally tells his daughter that he was Wild Tiger. She thinks he's a chump. Time to lose that stupid secret identity.