According to Sir Ian McKellen, Bryan Singer may shoot X-Men: Days of Future Past in HFR 3D. From IGN’s interview with McKellen:

“I know [Bryan Singer]‘s a big fan of The Hobbit. He went to the opening with James Cameron in New Zealand, and he was very enthusiastic about the new technology. So whether we’ll be filming X-Men in 3D and 48 frames per second, we’ll find out.”

Singer tweeted the following after watching the premiere of The Hobbit: An Unexpected Journey in Wellington:

Just saw #Hobbit. Having some serious frame rate envy. Amazing and involving. Loved it! And @ianmckellen118, my friend, you are brilliant!

— Bryan Singer (@BryanSinger) November 28, 2012

It looks quite likely indeed that X-Men: Days of Future Past will shoot in HFR 3D. Will it be 48 fps, or will Singer decide to up the ante and make it in 60 fps? I’m guessing we’ll find out soon.

X-Men: Days of Future Past is a time travel story that combines characters from the original 3 X-Men films (including Sir Ian McKellen as Magneto, Sir Patrick Stewart as Professor Charles Xavier, and Hugh Jackman as Wolverine) with the younger cast introduced in Matthew Vaughn’s X-Men: First Class. It’s currently scheduled to hit theaters on July 18, 2014, which is the release date of The Hobbit: There and Back Again.

I thoroughly expect one of these films to change dates. There’s a huge overlap in audience for these movies, not to mention McKellen probably doesn’t want people to have to choose between Magneto and Gandalf. And of course there will be a limited number of HFR 3D screens. So I’m sure 20th Century Fox and Warner Bros. will work something out.