The director duo opened up about the difference in the most recent issue of Empire Magazine. They began with the most obvious difference, and that has to do with the cast Endgame has to work with.
"Alright, we have no idea how the story can move forward from here. We've just killed half the characters,? Joe Russo stressed.
Writer Stephen McFeely then said the biggest narrative difference comes courtesy of Thanos. He stressed Infinity War focused intensely on Thanos? mission, but Endgame will be all about the original heroes of the MCU.
"Infinity War had 23 people on the poster," McFeely said. "That dictated a certain type of pace and a certain type of movie. There's only, what, nine people on the poster for Endgame? So maybe you can do a different type of storytelling."