New photos from the set of the untitled Avengers movie ignited a wave of speculation as some of Marvel Studios' most popular heroes joined Captain America, who was sporting his classic uniform. While some thought this indicated a flashback, time-travel, or maybe even resurrections of characters who die in Avengers: Infinity War, it's hard to tell at this point. But someone noticed an interesting detail in the photos, which could have huge implications for the film's plot. Specifically, what is on their hands? Ant-Man, Iron Man and Captain America are all sporting strange devices strapped to one of their hands, with a circular section that appears to be a socket. What if these were makeshift Infinity Gauntlets, meant for each of the heroes to wield one of the six Infinity Stones? Meant to keep the vast power of the assembled stones from being wielded by one individual, these could be just a few of the heroes tasked with protecting the Infinity Stones. Of course, as we saw in...