The website for the official anime adaptation of Puyo’s spin-off manga The Disappearance of Nagato Yuki-chan is now live (it can be found here). It began as a manga spin-off of Nagaru Tanigawa’s novel The Disappearance of Haruhi Suzumiya, the fourth novel in the The Melancholy of Haruhi Suzumiya series. There are also two other parody spin-off manga series which also received an anime adaptation, The Melancholy of Haruhi-chan Suzumiya by Puyo and Nyoron☆Churuya-san by Eretto.
All official and spin-off anime titles prior to now were dubbed and subtitled into English and released on DVD by Bandai Entertainment USA, but since the company no longer exists, there are no guarantees that the series will receive an English release and with the same dub cast. The original Japanese voice-cast is confirmed to be returning for this adaptation.
The character designs, based on the original ones by Noizi Ito, are featured below.