We didn't see this one coming. The first DC Studios anime has been unveiled at Annecy International Animation Film Festival – and it's all about a Joker revenge quest.
As per the logline for Joker: Laugh Riot, "When Batman is murdered, the Joker launches a ruthless crusade through Gotham’s underworld to find the killer who took away his greatest adversary. But as his violent quest for answers pushes him closer towards vigilante than villain, Joker is forced to confront the truth that without Batman, he doesn’t know who he is."