Yellowjacket wasn't exactly Marvel's most memorable villain but he served a purpose in Ant-Man and got exactly what he deserved when it appeared as if every bone in his body was destroyed when he was shrunk down into the Quantum Realm after Scott Lang destroyed his suit. However, could it be that he's still out there somewhere? Ant-Man and The Wasp director Peyton Reed is open to the idea!
"Well, I mean, you guys are making a massive assumption," he said when it was pointed out that Yellowjacket was a typical disposable Marvel bad guy. "There's an assumption here that I'm not quite comfortable with. If you watch his death in the first Ant-Man, the suit is compromised...he shrinks and goes into a thing. I mean, he could be somewhere down there in that quantum realm."
One popular fan theory is that Darren Cross could become M.O.D.O.K. after essentially having his body twisted up and deformed within his suit but that might be a stretch. Seeing him return from the Quantum Realm could be fun, though, especially as it's become clear that location will be further explored somewhere down the line. Would you guys like to see Yellowjacket back in the MCU?