Madhouse's official website lists an original anime movie titled Kimi no Koe wo Todoketai (I Want to Deliver Your Voice), which will premiere in Summer 2017.

The main cast members of the movie are six lucky girls, Misako Iino, Mitsuho Kambe, Aki Tanaka, Hitomi Suzuki, Momone Iwabuchi, and Mina Katahira, who were chosen out of 3000 contestants. They will also be part of a seiyuu unit called NOW ON AIR and will debut through Lantis. The winners participated in an audition called "Kimi Koe Project," which was broadcast on Kimikoe TV, and were judged by Naoyuki Itou (Overlord), Yuuji Shimizu (Redline), and Youhei Kizara. More information will be announced at later time.

Director: Naoyuki Itou (Hunter x Hunter Movie: Phantom Rouge episode director)
Studio: Madhouse, Touhoku Shinsha

Official site: http://kimikoe.com/

Source: Madhouse's site

Kimi no Koe wo Todoketai on MAL