Board Thread:Questions and Answers/@comment-60.240.26.67-20130311030933/@comment-47881-20130312190620

That doesn't mean they'd write themselves into a corner and kill any chance of telling more stories. Expect the main plot resolved, but a cliffhanger to another.

And something I forgot to mention: season two wasn't cut to 20 episodes. The original order was 10 and they expanded it to 20.