Spoilers ahead for Avengers: Endgame. After the events of Avengers: Endgame, it looked like all of the Iron Man storylines had been wrapped up. Tony Stark died saving the universe, and earlier in the MCU, we learned that the Ten Rings and the Mandarin were a false front for Aldrich Killian…except they weren’t. The Marvel One-Shot, “All Hail the King” revealed that the Mandarin and the Ten Rings were real and they were less than pleased with Trevor Slattery using their name. But since then, the Ten Rings seems to have largely phased out the MCU, a …