I'm pretty sure this has not been mentioned yet. But Yoshiki Tanaka's mystery novel series,
Yakushiji Ryōko no Kaiki Jikenbo (The Strange Case Files of Ryōko Yakushiji), have been announced to have an anime adaptation next year. Narumi Kakinouchi (creator/artist of Vampire Princess Miyu) has so far drawn the manga version of it.
News Source:
ANN