User blog comment:Nmrls/What are you looking forward too?/@comment-4967138-20130106063124/@comment-108.94.3.156-20130107045119

If Jason was a member of the Team on Earth-16, then a good theory is that he probably died during a mission that somehow involved the Joker. Jason's death at the hands of the Joker is probably one of the many constants in the DC multiverse, but I'm willing to bet the circumstances that led to it are just different.