IS: Infinite Stratos 2 - Hitonatsu no Omoide
IS: Infinite Stratos 2 - Hitonatsu no Omoide, IS: Infinite Stratos 2 Long Vacation Edition - The Memories of One Summer
New 40-minute OVA to be released on October 30, 2013. It will be a longer version of the second season's first episode, which is under the same title.