The reason we need a season 3 is because, as you all saw at the end, the war isn't over yet, as you saw at the ending of season 2, dark side returns to make a deal. Now if you ask me, I would say they just left me hanging. I would want to know what would happen to the league and the team. I wonder if they can take him down as easily. Also how will aqualad treat the team now that night wing retired? This is why we need a season 3 for Young Justice.