According to the preview of Type-Moon Ace magazine vol.6, Urobuchi Gen's novel Fate/zero was announced to get an anime adaptation. The production studio is ufotable.

Fate/zero official website

Staff
Director: Aoki Ei ("Kara no Kyoukai 1: Fukan Fuukei")
Original Character Design: Takeuchi Takashi
Animation Character Design: Sudoh Tomonori ("Kara no Kyoukai"), Ikariya Atsushi

Cast
Emiya Kiritsugu: Koyama Rikiya
Irisviel von Einzbern: Ohara Sayaka
Illyasviel von Einzbern: Kadowaki Mai
Saber: Kawasumi Ayako
Hisau Maiya: Tsunematsu Ayumi
Tohsaka Tokiomi: Hayami Show
Archer: Seki Tomokazu
Tohsaka Aoi: Ito Hasumi
Tohsaka Rin: Ueda Kana
Kotomine Kirei: Nakata Joji
Assassin: Abe Sachie, Kawamura Takuo, Tokumoto Eiichiro
Kotomine Risei: Hirose Masashi
Waver Velvet: Namikawa Daisuke
Rider: Ohtsuka Akio
Kayneth El-Melloi Archibald: Yamazaki Takumi
Lancer: Midorikawa Hikaru
Sola-Ui Nuaba-Re Sophia-Ri: Toyoguchi Megumi
Matoh Kariya: Shingaki Tarusuke
Berserker: Okiayu Ryotaro
Matoh Zoken: Tsukayama Masane
Matoh Sakura: Shitaya Noriko
Matoh Byakuya: Toriumi Katsumi
Uryu Ryunosuke: Ishida Akira
Caster: Tsuruoka Satoshi

A manga serialization by Shinjiro will also start in Young Ace.

Sources: Scan of Young Ace preview, Type-moon Ace
Related topic: ufotable to Animate Type-Moon's Girl's Work

Updated on January 5th
According to Newtype magazine February issue, Fate Zero anime was announced to be this year's TV series.

Source: Scan of Newtype