Here’s some fantastic news for X-Men fans! Director Brian Singer has confirmed that the older versions of Professor X and Magneto (Sir Patrick Stewart and Sir Ian McKellen respectively) are officially on board to reprise their roles in the upcoming X-men sequel ‘X-Men: Days of Future Past.’

On Twitter earlier today, Singer first sent a tweet officially welcoming the actors who starred in ‘X-Men: First Class’ saying:

Then to the delight of many fans added:

No matter how anyone may feel about the fact that Singer will be directing this film, it’s impossible not to get excited about the prospect of seeing these two actors once again on the big screen in their iconic superhero/supervillain roles.

How exactly they will they factor into the plot is unknown but those who are familiar with the comic book series know that ‘X-Men: Days of Future Past’ will be based on the 1981 comic book arc by Chris Claremont and John Byrne involving time travel. In the comic seres, a future X-Men, Kitty Pryde, forewarns present day X-Men about a dystopian future if they are unable to prevent the assassination of an anti-mutant political Senator. Although the team was successful in their mission, the future of mutants being hunted and placed in internment camps still comes to pass replacing the actual real future.

It’s easy to see that the X-Men of ‘X-Men: First Class’ would be considered the “present day” in the above scenario and the X-Men led by Patrick Stewart’s Professor would constitute the bleak alternative future ones.

With Stewart and McKellen on board and the possible visit to the “future X-Men,” does that mean we’ll be seeing Rebecca Romjin (Mystique) and Kelsey Grammer (Beast) reprising their roles opposite their past selves? Will Hugh Jackman’s Wolverine be making an appearance (as the mutant did play an important role in the comic book story)?

We’ll just have to wait and see. As Singer teasingly tweeted, “More to come…”