It's got a bit tired to open a Deadpool article astounding at the Merc with a Mouth's success; you gawp at his ever expanding box office (almost $700 million at the time of writing) or gleefully state its obscenely positive RottenTomatoes score (84%, although I'd argue that's a tad generous) or how this has all come under the shadow of absolute travesty X-Men Origins: Wolverine. Of course, you can also be like Deadpool and do all that with a veil of subversion that still gets the job done. So yeah, Deadpool's a bona fide hit, already set to be one of 2016's biggest movies, and naturally conversation has moved to what's next. The post-credits sequence dropped a major clue, but where exactly Deadpool 2 will go, and when it'll hit, is very much up in the air. As is how this new hero will tie into the wider X-Men canon? Will there be a proper crossover, or will they silently exist side-by-side with only the odd jab coming from Mr. Pool? That's probably the biggest question going forward, but what if the simple answer is "He doesn't"? He's an X-Men character, yes, and there's no shortage of references to the X-Men continuity in the film itself, but there's also several clues that point to the character being in, and set to remain in, his own R-rated world. WARNING: This article contain Deadpool spoilers and incredibly fanboy pernicketiness in equal measure.
Honourable Mention - The Fourth Wall Breaking (Doesn't Really Count)
Many of you probably think that Deadpool's propensity to break the fourth wall is the resolute proof we're in a different universe, but that willfully ignores how the exact same thing is executed in the comics - Wade Wilson's adventures and medium jabs are even more outrageous in print, yet there's never a question that he isn't in the same universe as Wolverine (or Iron Man, for that matter). No, instead his heightened awareness is merely brushed off by everyone else in the world has his own, internalised madness, something the film actually replicates with Negasonic Teenage Warhead finding Wade's eccentricities to be, well, just eccentricities. So, as with the comics, there's nothing implicit forbidding the idea of a character breaking the fourth wall being in a movie with people who can't (after all, isn't that exactly what Ferris Beuller is).
