In another exciting turn of events for DC fans, a new film featuring John Constantine is now in active development at Warner Bros. In the recent slew of news, Michael Keaton is returning as Batman in Flashpoint, now a Zatanna film is rumored to also be in development, and now Constantine joins the line up of films to be unveiled at DC fandome. At this time its unknown whether this film will see Keanu Reeves reprise his role from the 2005 film or a completely rebooted character.
As aforementioned a Zatanna film is in development as well as a Justice League Dark series for HBO max. Its slowly looking more and more likely that these films will act as the a defenders type situation or MCU solo to team up film in which the characters have solo series as well as a major team up for Justice League Dark. J.J Abrams production team Bad Robot is attached to Constantine as well as Justice League Darks series.
Source: The Direct