Batman Ninja has a second trailer out with English Subs and new footage, which gives more detail into the narrative of the anime feature.
Description reads
From Japan, to the World
The most extraordinary entertainment!
“Batman Ninja” In Japan Cinemas 2018
Batman Ninja is directed by Jumpei Mizusaki with screenplay by Kazuki Nakashima, Character Design by Takashi Okazaki, music by Yugo Kanno and animation production by Kamikaze Douga.
Batman is voiced by Koichi Yamadera, Wataru Takagi voices the Joker, Ai Kakuma voices Catwoman and Rie Kugimiya voices Harley Quinn.
Watch the Batman Ninja trailer (with English Subs) in the player below:
BATMAN NINJA ANIME FEATURE IS SLATED FOR RELEASE IN 2018