Early in development when director Matthew Vaughn was still attached to direct X-Men: First Class 2. He hinted that JFK's assassination with Magneto would be a good idea for the sequel film. It was later revealed that Bryan Singer would be taken over as director and moving forward with the 'Days of Future Past' storyline. Well now a new viral video has hit that suggest they may have kept in the JFK assassination plot in X-Men: Days of Future Past:
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X-Men: Days of Future Past hits May 2014