A third season of Our Last Crusade or the Rise of a New World is officially in development, Studio Palette and SILVER LINK. confirmed at the Fantasia Bunko Grand Thanksgiving Festival 2026 Online event Sunday.

Director Yuki Inaba returns alongside character designer Kaori Yoshikawa, who will also oversee series scripts. The voice cast is staying intact: Yūsuke Kobayashi returns as Iska, Sora Amamiya as Aliceliese Lou Nebulis Ⅸ, and Nao Shiraki, Kaori Ishihara, Shunichi Toki, Yumiri Hanamori, and Azumi Waki reprise their supporting roles.

The anime adaptation of Kei Sazane and Ao Nekonabe's light novel series began in October 2020. Season two aired its first four episodes in July 2024, then delayed the remaining episodes to August 2024 for quality control. The full season repeated from the beginning in April 2025 on Crunchyroll, which also streams an English dub alongside the Japanese audio.

Yen Press publishes both the light novels and manga adaptation in English. The story follows an Empire knight and a princess from the magical realm of Nebulis—sworn enemies caught between their nations' war, yet drawn to each other. Sixteen light novel volumes are currently in print in Japan, along with seven manga volumes and three volumes of the Secret File spinoff series.