According to Jump Square magazine, manga To LOVE-Ru Darkness
was announced to get an anime adaptation.
To Love-ru official website
Director: Otsuki Atsushi ("Motto To LOVE-Ru
Character Design: Oka Yuichi ("To LOVE-Ru
Production studio : Xebec
According to Anime!Anime!, it will be a TV series.
The type of the anime hasn't been announced yet. Anime!Anime! has apologized for reporting wrong information.
Sources: Scan of Jump SQ
To LOVE-Ru Darkness