(Warning: The following contains moderate to major SPOILERS for Captain America: Civil War, as well as theoretical ones for future Marvel movies. Proceed with whatever level of caution that suggests to you is wise...)
Now, while much of Marvel's freshly released Captain America: Civil War is endlessly enjoyable as pure spectacle, or for its carefully modulated references to past Marvel movies, the film also spends a solid chunk of its running time subtly setting up future installments in the Marvel Cinematic Universe. The likes of Spider-Man, Black Panther and Ant-Man are all intriguingly positioned in advance of their upcoming standalone adventures - and yet it might just be a hero whose future appearances we know strikingly little about whose role in Civil War could change the path of the MCU forever. Y'see...
(...and this is where those aforementioned SPOILERS really start to kick in...)
Captain America: Civil War Seems To Be Setting The Vision Up To Do Something Remarkable
Specifically, it seems as though The Vision could well be being cued up to be both a key player in Avengers: Infinity War - and in bringing together the cosmic and Earth-bound halves of the MCU.
Vision, after all, spends much of Civil War attempting to do right by the people of Earth, and by those humans who he's grown closest to - only for it all to backfire on him horribly. He not only horribly injures one of his allies in a friendly fire-like incident, but he alienates the one Avenger he's closest to - Scarlet Witch - by sticking too doggedly to both his orders and his sense of what's best for her.
In other words? The events of Civil War seem destined to teach The Vision one of two lessons: That he can't solve everyone's problems, and that he shouldn't try - or that he can, but not by living among the people of Earth, and being drawn into their emotion-led conflicts. That internal debate is one that the comic-book Vision has been dealing with for years, and one that, it seems, we may well see in the MCU before too long. The thing is, though...
We Might Also See The Vision Leave Earth Behind Entirely
After all, if his response to the events of Civil War is to pull away from humanity - and to follow up on his expressed interest in finding out more about the stone in his forehead that essentially gives him life - then he's almost certainly going to have to head out into space in search of answers.
And, with both Thor: Ragnarok and Guardians of the Galaxy Vol. 2 arriving in 2017, there's no shortage of movies in which a post-credits scene could depict him heading off into space - or perhaps even running into a cosmic hero (or villain) or two.
Avengers: Infinity War Looks Ever More Likely To Center Around Vision
After all, with Vision being powered by one of the Infinity Stones, it seems inevitable that we're going to see him come into conflict with Thanos at some point. After all, without a full set of stones, Thanos' Infinity Gauntlet isn't going to be all that much of a threat - meaning that the Mad Titan is likely going to have to take down The Vision.
That, though, isn't likely to be the last we'll hear of the hero. Y'see, many fans have long suspected that Vision is set to take over the comic-book role of Adam Warlock, a cosmic figure best known for fighting Thanos...and for having an Infinity Stone in his forehead.
With Civil War giving Vision less reason to feel included in the affairs of Earth - with his attempts to help seemingly causing more problems than they solve - could we see Infinity War transform him into a being of cosmic importance? A being, perhaps, whose new-found galactic focus could shift his MCU involvement from The Avengers to, say, The Guardians of the Galaxy?
We'll likely find not find out for sure until 2018 (or beyond), but in the meantime...