What we know about Avengers: Doomsday is limited, but comic book fans are hyped to see the return of so many X-Men stars. James Marsden debuted as Cyclops back in 2000, and fans have wanted to see him return for years now. During an interview with Vanity Fair, he spoke about reprising that character years later. He said:

James Marsden confirmed his return as Cyclops in the upcoming MCU film 'Avengers: Doomsday', expressing excitement about being part of a "gigantic" project. He humorously acknowledged feeling slightly old for the costume but emphasised the special significance of reprising the role that launched his career.

James Marsden finally talks about his long-awaited return as the X-Men's field leader Cyclops in the upcoming Avengers: Doomsday.