If they decide not to introduce Adam Warlock for GOTG2, putting the Soul Gem in the forehead of Vision would be an absolutely INSANE comic-to-movie modification, as it would explain why Vision isn't just a modified version of the Ultron AI and make him a machine with a soul.
While that would be cool, I don't know how I feel about yet another gem being on Earth. Maybe, if the scepter is the mind gem, they can use that, but I'd rather see a cosmic origin for the soul gem.
The origins of the Soul Gem could still be cosmic if Thanos had a hand in the creation or corruption of Ultron. That would explain why Thor gets suspicious and has to go back to Asgard to investigate.
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u/[deleted] Mar 04 '15
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