I found this while surfing the net and this would have happened if Jason wasn't killed in Death of the Family.
Jason would have been in a coma, which makes sense given the injuries he suffered. But if that was the only long term plan they had it's a real cheat. For some reason Dicks' present while he was away in the other version, TT stated he was actually off planet when it happened. Bruce still has his aghast but it doesn't seem like Superman was around and I'm hoping the Joker/Ambassador plot wasn't in the script either.