With Bryan Singer's X-Men: Apocalypse in 2016, 20th Century Fox will finish the trilogy it started back in X-Men: First Class. It's confirmed Gambit, Deadpool, and Wolverine have spinoffs in the next few years, but the cinematic future of many mutants - such as Jennifer Lawrence's Mystique, James McAvoy's Professor Xavier, and Michael Fassbender's Magneto - remains uncertain.
Jennifer Lawrence has said she'd like to reprise the role of Mystique in the future, though many fans have been left wondering about the status of James McAvoy's Professor X and Michael Fassbender's Magneto. The X-Men franchise has a rich comics mythos to draw from, and a lot of compelling material involving the two remains unadapted for the big screen. Hence, it's not too difficult to swallow new reports claiming Apocalypse will not mark the end of McAvoy and Fassbender's time in the X-Men cinematic universe.
According to Heroic Hollywood, Fassbender and McAvoy have reached an agreement to keep playing their X-Men roles in future movie installments. Heroic Hollywood's report also claims Fox is interested in having Nicholas Hoult (Hank McCoy/Beast) and Lawrence return, though the latter currently "seems unlikely" to reprise as Mystique. It's worth noting that although Lawrence has expressed "hope" that she will play her X-Men alter ego down the road, she's also indicated before that Apocalypse will be her last X-Men movie (in all likelihood).
This report comes shortly after actor Channing Tatum closed his deal to play the mutant Remy LeBeau/Gambit in the solo movie scheduled to arrive in 2016. Also concerning the future of the X-Men franchise: Hugh Jackman has made it clear that the 2017 Wolverine movie will be his final time wearing Logan's claws, while Hoult has said before that he enjoys playing Beast and that "I'd keep making [X-Men movies]" as long as Fox wants him around.
In early 2015, Fassbender told MTV News he wasn't certain whether or not he'd play as Magneto after Apocalypse, but did state he's "always interested in moving forward" as Magneto. The actor may soon add yet another successful movie franchise to his name, as he's gong to headline the Assassin's Creed video game adaptation that begins shooting in September 2015. Thereafter, Fassbender is poised to reunite with director Ridley Scott to make the Prometheus sequel, as the project is (reportedly) now set to start filming in January 2016.
Nonetheless, the possibility of both Fassbender and McAvoy continuing to appear in X-Men films after Apocalypse isn't so far-fetched. The two actors have fantastic chemistry together and give excellent performances, while their characters play pivotal roles in the X-Men cinematic universe. There appears to be interest from the pair to continue doing so, too. It's even possible the duo are being eyed to serve as the "glue" holding the X-Men franchise together, as Fox continues to expand the brand - with a Fantastic Four crossover a possibility down the line (assuming director Josh Trank's fast-approaching F4 movie reboot doesn't fall flat on its face, anyway).
However, recasting a character isn't exactly uncommon for Fox when it comes to the X-Men series. Case in point: McAvoy and Fassbender are playing the younger versions of characters previously brought to life in Bryan Singer's first X-Men movie in 2000, while the upcoming Apocalypse will feature several younger versions of mutants (like Scott Summers/Cyclops) played by different actors in X-Men films past. (A comparatively organic way of "rebooting" characters, so to speak.)
Hopefully, the report does pan out because Fassbender and McAvoy have a gripping dynamic during their X-Men movie scenes together. One can only imagine how the conflict with Apocalypse will alter the relationship between McAvoy's Professor X and Fassbender's Magneto (what with the latter being one of Apocalypse's Four Horsemen in the film) and where the story with those versions of the characters could go from there. The duo has received a lot of insight since the very first X-Men movie, but with the right script, they can still be incorporated without hogging the spotlight from others.
Fantastic Four opens in theaters on August 7, 2015, followed by Deadpool on February 12, 2016; X-Men: Apocalypse on May 27, 2016; Gambit on October 7, 2016; Wolverine on March 3, 2017; Fantastic Four 2 on June 9, 2017; and some as-yet unspecified X-Men film on July 13, 2018.
Source: Heroic Hollywood