Peyton Reed introduces the Fantastic Four through Antman 3. Iron Heart is the defacto sequel or next movie in the MCU where Doom takes her on for Stark’s tower and secrets. This story is the immediate after math of Antman stumbling upon them and Paul Rudd only cameos before Leaving and Doom catching up to give the 4 a choice to eliminate his former colleagues or join him in taking out the rest of the Avengers
