User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-432124-20120816031134

One of the reasons why I'm thinking that these scenes are just from the next couple of episodes is because this season was initially only supposed to last 10 episodes. When they made the 10th episode, they thought that it was going to be the season finale. So they probably put something epic in episode 10 that would change the rest of the season and if so, they wouldn't divulge anything past that.