Here’s your first look at the upcoming Fate/Grand Order: Zettai Majuu Sensen Babylonia anime series. The story will focus on Gilgamesh — bearing in mind that series can be watched separately from Fate/Zero and Fate/stay night: Unlimited Blade Works.
— 【公式】Fate/Grand Order -絶対魔獣戦線バビロニア- (@FGOAP_ep7) December 31, 2018
CloverWorks (Persona 5 the Animation / DARLING in the FRANXX) is producing the series, with Toshifumi Akai (DARLING in the FRANXX co-director) directing.
Babylonia takes place in Mesopotamia as humanity starts to part ways with the gods. A prophecy foretells that ruin will consume Uruk, leading to a great war. The series will debut in 2019.