Just three days after Fox was seemingly pushed by online reports into announcing plans for an X-Force movie ahead of Comic-Con International, intriguing new details have surfaced about director Bryan Singer's X-Men: Days of Future Past. Warning: Potential spoilers follow.

Vulture confirms what's been speculated for months, that Game of Thrones star Peter Dinklage will indeed play Bolivar Trask, the military scientist who created the enormous mutant-hunting robots the Sentinels. By this point that shouldn't surprise too many, particularly as the Sentinels loom large (ahem) in the 1981 Marvel Comics storyline on which the film is based.

However, the identity of Australian actor Josh Helman's character may catch some fans off-guard: Although his "significant role" was quickly pegged as that of Cyclops, the website contends he'll play a younger version of William Stryker, the soldier turned religious zealot portrayed in X2 by Brian Cox and in X-Men Origins: Wolverine by Danny Huston.

The biggest potential reveal may be the size of Hugh Jackman's role in Days of Future Past. In the original two-part story by Chris Claremont and John Byrne, the X-Men's failure to prevent the assassination of a U.S. senator by the Brotherhood of Evil Mutants results in the creation of a dystopian alternate timeline in which the Sentinels have become the de facto rules of the country, where mutants are hunted down and placed in internment camps. In that future, Kitty Pryde sends her mind back to possess the body of her younger self in an attempt to warn the X-Men and stop the future from coming about.

But Vulture reports that in Singer's version, Ellen Page's Kitty sends Wolverine into the past: "However, something bad happens to Kitty during the time-travel trance, and while Wolverine is still under her spell, the other X-Men must race to find a mutant who can siphon Kitty's powers and bring their friend back to the future." The site speculates that may be where Anna Paquin's Rogue comes into play.

And in official movie news, Singer just tweeted a photo confirming the involvement of X-Men: First Class actor Lucas Till (below)

Opening May 23, 2014, X-Men: Days of Future Past also stars James McAvoy, Michael Fassbender, Nicholas Hoult, Jennifer Lawrence, Ian McKellen, Patrick Stewart, Halle Berry, Shawn Ashmore, Daniel Cudmore, Omar Sy, Booboo Stewart, Fan Bingbing and Adan Canto.