As most true Marvel Geeks know, the MCU is steering it's ship toward a crescendo with the "Avengers Infinity Wars". In the story Thanos, the big blue baddie from the Avengers end credits, and Guardians of the Galaxy, is searching for the infinity stones, to fit in his Infinity Gauntlet, seen in the end credits of [The Avengers: Age Of Ultron](tag:293035).
The Infinity Gauntlet holds the six infinity stones (go figure) and gives absolute power to the wearer. they consist of the accumulated MCU artifacts to date which are, the Space stone in the Tesseract from Captain America the First Avenger, the Reality stone from the Aether in Thor the Dark World, the Power stone from the orb in Guardians of the Galaxy, and most recently the Mind gem from Avengers age of Ultron. This leaves the Time stone, and the Soul stone, yet to be discovered in the MCU. I imagine Doctor Strange played by Benedict Cumberbatch will have something to do with at least one, of these last two undiscovered gems.
In Age of Ultron, the Vision comes to life, when the mind gem is implanted in his forehead. so here's the conundrum, Thanos will wield the Infinity Gauntlet.
This means only one thing the Vision will either die or be incapacitated. Since no one ever dies permanently in the comics (they all come back eventually) it will be interesting to see how Marvel is going to pull it off,...of the Visions Forehead.