Japan's Animedia megazine has confirmed that the second season of the Sunrise produced Horizon in the Middle of Nowhere will be scheduled for the Spring season in April of 2012, following the conclusion of the current season which is currently airing in Japan and being simulcast on Crunchyroll.

The series is adapted from the currently ongoing light novel series of the same name and is best known for its convoluted storyline and character relationships, so much so that the official site went as far as creating an official chart to break down the relationships.
Personally, I couldn't make it past 4 episodes before giving up due to short-term brain failure. Anyone out there giving Horizon an honest chance?
via MAL