Get ready, "X-Men" fans, because your universe is about to gain a few new favorite characters.

At Toronto International Film Festival in support of "The Martian," which he produced, Simon Kinberg told MTV News that the upcoming "Gambit" and "Deadpool" would have continuity with the post-"Days Of Future Past" X-Men universe, and that he's planning to "cross-pollinate" characters from the various movies.

"The idea is that we’ve sort of reset the timeline after 'Days of Future Past' in some ways, and if not erased, certainly allowed for change from 'X1,' '2,' '3,' everything from 'Days of Future Past' forward, 1973, everything we set now becomes canon," he said. "So the 'Gambit' movie, the 'Deadpool' movie, will exist in a world that acknowledges whatever happened in 'Days of Future Past' and moving forward. Doesn’t mean they’ll always interact with those characters, obviously, it’s not like every movie has all the characters, but they all have to exist within the same rules."

"There will be interplay between different characters in different movies."

Pretty cool, but how does he keep it all straight? As it turns out, dude has an actual chart to keep track of where -- and when -- everyone is.

"I don’t have it up on a wall, but I have it on my computer, and I have it sort of tattooed on my brain now too," Kinberg said. "Nothing external, so that if I get knocked over the head, no one can read it. It’s literally behind my eyelids. But yeah, we have a clear sense of the directions we want to take them in and in my my mind at least, how we could start to cross-pollinate sort of with those characters that have their standalone movies."

And speaking of those iconic characters, Kinberg offered up an explanation about the villainous Apocalypse's rather outlandish costume. The "X-Men" movies have long scoffed at goofy superhero costumes, and Oscar Isaac's Apocalypse marks a sharp turn away from the usual look we've come to expect. So what's up with the costume?

"I feel like we have been, the 'X-Men' franchise, has been growing a little bit more into science fiction. I think 'Days of Future Past' with time travel and the Sentinels took us into a slightly broader, more science fiction world than the films had occupied in the past," he said. "We felt like the movies were ready for something that was slightly more, let’s say, cosmic. Once we made the decision for Apocalypse to be the villain at the center of the movie, we wanted to be true to the comics, which are sort of, like you, say, not costume, but it’s not just a guy in a helmet. It is more cosmic."

"X-Men: Apocalypse" hits theaters May 27, 2016.