While Marvel's Cinematic Universe has been well received by critics and fans alike, Warner Bros. attempt to replicate the Disney-owned studio has been met with widespread criticism. Upcoming feature The Flash and The Batman have both been severely delayed, the latter losing Ben Affleck as director while gaining Matt Reeves of Cloverfield and Dawn of the Planet of the Apes fame. Even Aquaman - the next DC Extended Universe - due for release after this year's Justice League, has been delayed until 21 December 2018 (a fitting Christmas tale). As picked up by Den of Geek, Variety reporter Justin Kroll has claimed Warner Bros. is looking to film at least one more DC flick this year alongside Aquaman. They just don't know which one. The studio currently has a plethora of announced film that have no release dates and will choose from five - including Suicide Squad 2, Gotham City Sirens, Dark Universe, The Flash and Green Lantern Corps . Legend of Tarzan writer Adam Cozad has reportedly signed on to write Suicide Squad 2, with Mel Gibson being pursued to direct the film. David Ayer, meanwhile, will helm Harley Quinn-led spin-off Gotham City Sirens, rumoured to feature Megan Fox as Poison Ivy. Dark Universe - also known as Justice League Dark - has been in the works since 2013, when Guillermo del Toro was on board to direct. After leaving the project, Doug Liman (The Bourne Identity, Mr. & Mrs. Smith, Edge of Tomorrow) signed on to direct. Earlier this month, comic book stalwart Matthew Vaughn was revealed to be in negotiations with Warner Bros. regarding Man of Steel 2 following his work on Kingsman: The Golden Circle. Whatever the case, there are numerous projects that could likely be chosen to film this year. Which one, though, remains up for debate.