Warning: Spoilers for Unbreakable and Split follow...

With Glass about to hit theaters, it's the perfect time to revisit this feature where we speculate about the future of the Unbreaka-verse... assuming there even is one!

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Womp womp.

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Long before the MCU, and even before Sam Raimi's first Spider-Man film, M. Night Shyamalan followed up his massive breakout hit The Sixth Sense with a really solid take on the old "what if superheroes were real?" story.Unbreakable, starring Bruce Willis and Samuel L. Jackson, didn't reach the heights of Sixth Sense but in looking back, fans still herald it as one of the writer/director's best and most satisfying projects. The way the story unfolded definitely seemed to set up "adventures to come," though it also managed to stand very well on its own, as an isolated island work, without franchise goals. You could certainly imagine Willis' David Dunn continuing his work as Philadelphia's super strong rain-poncho'd vigilante while Jackson's Elijah "Mr. Glass" Price rotted away in a psychiatric care facility...and that was enough for most.If there's one thing fans of Unbreakable might unanimously agree on as the film's ultimate weakness - like the way bodies of water can thwart David Dunn - it's the end. The very end. No, not the twist. The reveal of Elijah being the comic book "villain" to David's "hero," with hundreds of lives lost in Elijah's efforts to find his across-the-aisle equal, was a devilish delight (though perhaps not as mind-blowing as the end of Sixth Sense was to unsuspecting audiences). No, it's what happened after the reveal when... the story just stopped.We got hit with a rather abrupt epilogue.Title cards? Freeze frames? In a movie that hadn't established those devices as part of its storytelling methods? It literally, at the time, felt like production was forced to come to a grinding halt and the short wrap up scenes that would have been filmed were instead just summarized quickly.As time went on, the strengths of Unbreakable managed to persevere over the oddball rug pull ending, but fans never really forgot that the ending felt like running into a bonkers brick wall.Now, with the major twist of 2017's Split being that it was an unadvertised Unbreakable sequel, 17 years after the fact, Glass is set to give all of us the Unbreakable continuation we always dreamed of. We didn't necessarily need it, but, as mentioned, the sudden ending, which robbed many viewers of true closure, always lingered as this one slight imperfection in an otherwise awesome movie. Our appetites could have been sated with just a few more scenes, which would have allowed Unbreakable to vanish into the event horizon as a beloved cult classic (though one that garnered almost $250 million at the box office), but now our cup runneth over. We're about to catch up with both David and Elijah, and see how the two of them interact with Split's Kevin Wendell Crumb (James McAvoy) - aka "The Horde."Glass is honestly more than we ever could have hoped for. At the time of its inception, Unbreakable was meat to simply be an origin story - possibly the first of three movies. Is Glass the next chapter or the final chapter? Was Split the film Shyamalan intended as the second movie or was it just a fun detour? Just a way for him to find his way back into the story after almost two decades? Regardless, Glass is officially here to erase any and all bad memories of Unbreakable's short-sheeted ending.Glass is also here to pay off some of the themes brought up by Jackson's Mr. Glass regarding the many manifestations of comic book villains. "There's the soldier villain, who fights the hero with his hands," Elijah's mom told David in Unbreakable, quoting her son, "and then there's the real threat, the brilliant and evil archenemy who fights the hero with his mind." Back when we all thought the Unbreakable-verse would never live again, the role of the "soldier villain," as opposed to Elijah's "archenemy," was filled by "The Orange Man" - a hulking, silent train station janitor who David discovered had committed multiple murders.With Kevin's monstrous "Beast" personality now in play (which can alter Kevin's entire physiology, making him faster and stronger) and still up to his old kidnapping/murdering tricks (as we saw in the trailer when David bumped into Kevin and caught a vision of a past crime), it looks like Mr. Glass may have finally found a "soldier villain" to partner with. "That sounds like the bad guys teaming up," Glass sneers in the trailer, giving rise to his comic book prophesy regarding David Dunn's foes.While Glass has all the hallmarks of an endgame, could it, and not Split, be the middle chapter of Shyamalan's three-part story? We're all eternally grateful that the story of Unbreakable is continuing, and all signs point to Glass being the final battle between David and Elijah - but there are a few moments in the trailer that suggest a larger Unbreaka-verse around the corner. Maybe one more film, or maybe several more."I've been waiting for the world to see that we exist," Glass says, indicating that he's now hellbent on going public with his findings. Also, right at the start of the trailer, Sarah Paulson's Dr. Ellie Staple mentions that her specific study, into those who have delusions of being superheroes, is a "growing field." Meaning, more and more people out there are discovering that they have extraordinary abilities. How much more heightened can powers get in Glass given the grounded nature of the Unbreaka-verse? We're not sure, but these bits of new footage seem to suggest that others out there are being drawn to the idea that people embody certain aspects of comic book storytelling ("Heroes" in green and "Villains" in purple, naturally).It could be that Glass just winds up teasing us with heroes and villains to come, but it could also act as a gateway for an entirely new movie universe centered around the battle between Mr. Glass and "Security." After all, one of the comics featured in Unbreakable was called Sentryman, which featured on its cover a group called the Coalition of Evil. Will the Horde be the story's Coalition, given that there are 24 personalities within Kevin, or will other villains join the mix?And how does Split's Casey Cooke (Anya Taylor-Joy) fit into the puzzle? After all, her first and last name both start with the same letter. That's an easy square in any version of comic book hero bingo.

Matt Fowler is a writer for IGN and a member of the Television Critics Association (TCA). Follow him on Twitter at @TheMattFowler and Facebook at Facebook.com/MattBFowler