According to official website,  anime adaptation of fantasy romance visual novel game Little Buster will officially air this coming October.

Here is the anime trailer

Riki was a child when his parents died, leaving him hopeless and depressed. What saved him was a group of four kids calling themselves the Little Busters. They took Riki out and played with him during his time of need. He really enjoyed being together with them, and his grief gradually faded away. Now in his second year of high school they still hang out, fight and live together, and enjoy their school life.


Hikaru Midorikawa as Kyōsuke Natsume
Tomoe Tamiyasu as Rin Natsume
Yui Horie as Riki Naoe
Keiko Suzuki as Haruka Saigusa
Naomi Wakabayashi as Kudryavka Noumi
Natsumi Yanase as Komari Kamikita
Nobutoshi Canna as Masato Inohara
Ryouko Tanaka as Yuiko Kurugaya
Shiho Kawaragi as Mio Nishizono
Yusei Oda as Kengo Miyazawa


Director: Yoshiki Yamakawa (Baby, Please Kill Me!, Hatsukoi Limited)
Series Composition/Script : Michiru Shimada (Jewelpet Twinkle, Shugo Chara!)
Original Character Design: Itaru Hinoue and Na-Ga
Character Design/Animation Director: Haruko Iizuka (Inu X Boku Secret Service, Ōkami-san & Her Seven Companions) 
Producer: Kohei Kawase
Animation Studio: JC Staff (Toradora!, Zero No Tsukaima)

Voice actress and singer Tomoe Tamiyasu first announced that anime series will air this coming autumn in her official blog but the date was later deleted.  Tamiyasu will voice the heroine Rin Natsume.

Update (September 2, 2012):
According to official website, it has announced that upcoming fantasy/romance anime series Little Buster will premiere on October 6.

Source [1] [2]