The official website for the Kingdom anime recently announced that its third season is scheduled to resume broadcasting in April 2021. The news was followed alongside a new trailer and key visual. The anime’s broadcast of episode 5 and later episodes of the third season was delayed earlier this year, to Spring 2021, due to the impact of COVID-19 in Japan.
As previously announced, the third season’s new production staff members include Kenichi Imaizumi (After School Dice Club), who is directing the anime at Studio Signpost. Noboru Takagi (Golden Kamuy) serves as the scriptwriter, and Hisashi Abe (Psycho-Pass: Sinners of the System) is designing the characters.
Previously revealed new cast members for the anime include Yuya Uchida (The God of High School) as Shun Shin Kun, Miou Tanaka (Burn The Witch) as Kan Mei, Atsuko Tanaka (Campione!) as Ka Rin, Daisuke Namikawa (Black Lagoon) as Go Hou Mei (Wu Feng Ming), Tatsuhisa Suzuki (Assassins Pride) as Kou Yoku (Xiang Yi), and Yūto Uemura (Bungo Stray Dogs) as Haku Rei (Bai Li)

The returning cast members include Masakazu Morita (Baccano!) as Shin (Xin), Jun Fukuyama (Assassination Classroom) as Ei Sei (Yin Zheng), Rie Kugimiya (Bleach) as Karyō Ten (He Liao Diao), Kentaro Ito (Golden Kamuy) as Huan Ji, Yoshimasa Hosoya (Attack on Titan) as Ōhon, Hirofumi Nojima (Bakuman) as Mōten, Shiro Saito (Tsuritama) as Biao Gong (Hyou Ko), Kenyuu Horiuchi (BEASTARS) as Wang Jian (Ōsen), Taiten Kusunoki (Baccano!) as Mōbu, and Akio Kato (Beelzebub) as Tō.
Crunchyroll streamed the first season as it aired in Japan and described it as:
Shin and Hyou are war-orphans in the kingdom of Qin. They dream of proving themselves on the battlefield until the day Hyou is captured by a minister. The boy manages to escape and return to his village, but he is badly injured. Shin then meets a mysterious youth who bears an eerie resemblance to Hyou—a boy who will one day become emperor!
Sources: Kingdom anime’s website, ANN