The opening theme song “Phantom Joke” by Unison Square Garden was revealed previously.
We learned last summer that the Fate/Grand Order project is working through various projects, one of which is the Fate/Grand Order: Zettai Majū Sensen Babylonia anime set for an October 5th, 2019 debut.
You can see a sample of it below in the Tweet sent out with a new commercial.
Fate/Grand Order - Absolute Demonic Front: Babylonia Trailer 2