He did as much 13 years ago in Iron Man 3, the second he dropped his guise as the Mandarin to reveal that he was actually Trevor Slattery. The efficacy - not to mention the morality - of this twist has been the topic of heated debate ever since, but no one can deny that Kingsley isn't utterly sympathetic in the role.
With Born Again already reuniting half of the street-level super-team, does that mean Mike Colter's Luke Cage and Finn Jones' Iron Fist are waiting in the wings? Jones has expressed plenty of interest in returning, but Colter has been coy. "I was giving no one hope before," he said during a recent appearance on Shawn Stockman's On That Note podcast. After a promising development, however, we may be closer to seeing him step back into the MCU.