User blog comment:Thailog/New trailer for Season 2/@comment-4584676-20120422015641/@comment-4928331-20120422154348

Well, it is possible that we flash forward a couple of years later, and see Earth in a crapsack state after the Light explodes a genetic-enhancing bomb or something to accelerate human evolution. Then scaredy-cat aliens will invade the Earth and war and funsies for 2 years!

Think how fun it is to gradually find out what happened the past 24 months. It has been done before, in DC Comics.

Then again I am probably overthinking this and it's just a makeover. And of course Barbara magically grew herself an adult body in 6 months.