The Super Sons friendship was tremendously appealing, especially as it was structured with Damian as the slightly older, jaded and more experienced kid (not to mention being a former trained assassin, no less) while Jon functioned as the somewhat naive, innocent, eternally positive kid. Their fights were hilarious, but the way they'd also occasionally bond was touching. It made for a great superhero odd couple and could have continued for years in comics and even cartoons, even if both characters were spun off into their own solo titles.
Bendis torpedoed that, of course. Too egotistical and short sighted. Now with Jon being potentially older than Damian and having gone to war for Jor-El (and having his face scarred so he'll always be reminded he's human -- or something), even if they teamed up again, it wouldn't be the same.
Very bad decisions being made at DC right now.