What about Japanese Anime Series based on DC’s Justice League?
They have Batman and the Justice League Manga created by Saint Seiya Lost Canvas Artist ,Shiori Teshirogi why just be based on that.
Also they have manga based on Batman such as:
.Jiro Batman Manga
.Batman Gotham Knight
I wish they make a anime series based on DC characters such as:Superman,Batman,Wonder Woman,Flash,Green Lantern,etc.