It looks like Amazon has a hold on this simulcast, for sure.
Earlier today, Sentai Filmworks announced that they acquired the rights to UQ Holder!. The series will stream exclusively on Amazon’s Anime Strike service as a simulcast when it airs this fall.
The series hits Japanese TV on October 2 at 24:00 (10/3/2017 at midnight) on Tokyo MX, KBS Kyoto, Sun TV, and BS11. tvk will stream the show an hour later, at 25:00 (10/3/2017 at 1:00AM).
UQ Holder! is based on Ken Akamatsu’s UQ Holder! Magister Negi Magi! 2 manga. Youhei Suzuki (Sword Oratoria: Is It Wrong to Try to Pick Up Girls in a Dungeon? On the Side, Rune Soldier) will direct the project at J.C. Staff, with Masahiro Fujii (The Familiar of Zero, Hayate the Combat Butler!!) providing character designs. Series creator Ken Akamatsu and Shogo Yasukawa (Food Wars! Shokugeki no Soma, Terraformars) will collaborate on series composition and scripts.
The confirmed voice cast includes:
- Touta Konoe: Yuka Takakura
- Yukihime: Yuki Matsuoka
- Kurōmaru Tokisaka: Yūki Hirose
- Negi Springfield: Rina Satou
- Kirie Sakurame: Ai Kayano
- Karin: Yui Ogura
- Sayo Aisaka: Yuri Shiratori
- Yue Ayase: Natsuko Kuwatani
- Asuna Kagurazaka: Akemi Kanda
- Chachamaru Karakuri: Akeno Watanabe
- Makie Sasaki: Yui Horie
- Mana Tatsumiya: Miho Sakuma
- Nodoka Miyazaki: Mamiko Noto
- Ayaka Yukihiro: Junko Minagawa
- Fate Averruncus: Akira Ishida
- Shinobu Yūki: Sayaka Harada
- Mizore Yukihiro: Akari Kitō
- Ikkū Ameya: Tetsuya Kakihara
- Jinbei Shishido: Shunsuke Sakuya
- Gengorō Makabe: Yuuki Kaji
- Jack Rakan: Rikiya Koyama
- Ku:nel Sanders: Daisuke Ono
UQ Holder! began publication in Weekly Shonen Magazine in August 2013. The series currently spans thirteen collected volumes, with the most recent book due hitting Japanese book stores on April 7.
Source: Sentai Filmworks (Press Release)