It will come in January 2017.
In the pages of the newest number of Futabasha´s Monthly Action Magazine it has been announced that an Anime based on the Dragon Maid Anime is in the works and will come in the Winter 2017 Season.
Yasuhiro Takemoto (Lucky Star, Amagi Brilliant Park) is directing it at Kyoto Animation; Yuka Yamada (Samurai Warriors) is in charge of the scripts.
Seven Seas is publishing the manga and describes the story as follows:
“Miss Kobayashi is your average office worker who lives a boring life, alone in her small apartment–until she saves the life of a female dragon in distress. The dragon, named Tohru, has the ability to magically transform into an adorable human girl (albeit with horns and a long tail!), who will do anything to pay off her debt of gratitude, whether Miss Kobayashi likes it or not. With a very persistent and amorous dragon as a roommate, nothing comes easy, and Miss Kobayashi’s normal life is about to go off the deep end!”
Via: Anime News Network