The second season of Boku wa Tomodachi ga Sukunai, "Boku wa Tomodachi ga Sukunai NEXT" (Haganai NEXT for short) will be airing in January. The director is Kitahata Toru (Love, Election, & Chocolate) and the animation will be produced by AIC Build (Oreimo, Haganai).
Haganai Next begins airing on TBS January 11, at 1:55AM JST.
Boku wa Tomodachi ga Sukunai NEXT continues the story from the first season following the Neighbour's club activities as its friendless members try to practice activities friends would do.
If you haven't watched the first season of Haganai, take a look at the official character page to find out why they are so ronery.
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These screenies are from the PV above.