Knights of Sidonia: Love Woven in the Stars (Sidonia no Kishi: Ai Tsumugu Hoshi) has received a 5-minute preview. According to the official website, the film will be released on May 14th.
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Therefore, this new film will take a different path from the mangaand will, consequently, feature a new story.
Finally, the first season of the anime had 12 episodes and premiered in Japan in April 2014. The second season, also with 12 episodes, titled Knights of Sidonia: Battle for Planet Nine, premiered in April 2015. Netflix streamed both seasons.