>the basic plotline of Affleck’s solo Batfilm is that Jason Todd has returned from the grave as the Red Hood, working in the shadows to make people think he's Batman, while making Batman look like a criminal. At the same time he leaves clues about his identity for Bruce/Batman to ultimately solve, leading to a confrontation that will involve Batman, Red Hood, and yes, The Joker, who will feature as a primary villain alongside Red Hood."

>That's not all: the movie will apparently also feature Dick Grayson as Nightwing, who will team up with Batman to take on Red Hood and the Joker. Expect a Nightwing reference or two in Batman V Superman: Dawn Of Justice, which may also feature a cameo from Todd. In terms of casting, JoBlo has heard that WB and co. are searching for an unknown actor for the Red Hood role, and that the character's look will be derived from his comic book and Arkham Knight video game appearances.

http://www.joblo.com/movie-news/exclusive-spoilery-details-on-solo-batman-film-and-key-characters-involved-298

Fucking hyped. And if any doubt's Joblo, they are the ones that called out the new costumes and upgrades for every hero in Civil War to the tee months before concept art leaked.