According to the Ancient Magus’ Bride official manga webpage and the official webpage for the Ancient Magus’ Bride OVA series the Ancient Magus’ Bride will get a TV anime scheduled for release in October 2017!
They have already opened an official webpage for the TV anime series of the Ancient Magus’ Bride at: http://mahoyome.jp/. The series is planned to be 24 episodes and will be created by Wit Studio (the studio behind Attack on Titan, Seraph of the End and Kabaneri of the Iron Fortress).
The Ancient Magus’ Bride (jap. Mahou Tsukai no Yome) is originally a manga by Kore Yamazaki. The manga started in 2013 and is published in the japanese magazine Mag Garden. Currently the manga series is 7 volumes long. The author has said that she was inspired by the magical world of Harry Potter and western folklore while creating the manga series.
The story revolves around main character Chise Hatori a japanese girl who arrives in an alternative England where she works as an apprentice to the mysterious magus Elias Ainsworth which has a horned skull instead of a face.