We have the official announcement of the 2nd season of the anime The Ancient Magus' Bride (Mahotsukai no Yome) by author Kore Yamazaki. According to information from the official website, the new season will premiere in 2023.
Check out the announcement video:
Therefore, the announcement confirms the adaptation of the "Gakuin" (College) arc of the manga, which was released in May 2018.
The new season is directed by Kazuaki Terasawa at studio KAFKA, with scripts by Aya Takaha, Yoko Yonaiyama, and Chiaki Nishinaka. Character design by Hirotaka Kato and music by Junichi Matsumoto.
Synopsis:
The story revolves around Hatori Chise, who has lived a life of suffering, devoid of any feeling. When all hope seemed lost, she has an encounter when a man with the head of an animal, wielding strange powers, buys her at a slave auction. The man is a powerful sorcerer who decides to free Chise from the bonds of captivity.
In October 2017, the manga was adapted into a 24-episode anime series. The animation is by Wit Studio (Attack on Titan), directed by Norihiro Naganuma (Yowamushi Pedal), and character designs by Hirotaka Katō.