If there is one thing that the Marvel universe absolutely cannot control, it's the inevitable passage of time. Unlike the comic book characters that inspired them, or animated movies like The Incredibles, people in live action age and want to move on with their lives. One of the big hurdles that Marvel will have to overcome is whether audiences will accept someone else playing iconic roles like Tony Stark or Steve Rogers. But it's something that they can go a long time without addressing, since Marvel has a huge back catalog of characters that they could adapt to the big screen.
The inevitable passage of time could be one of the reasons that Marvel is shifting the focus, at least a little, to younger characters. Shows like Runaways and Cloak and Dagger point to starting the superheroes younger so they can age up more naturally. One of those characters is Cassie Lang, the daughter of Scott Lang, aka Ant-Man. Cassie goes on to be a member of the Young Avengers, and Heroic Hollywood asked Kevin Feige if they were planning on the Young Avengers joining the Marvel Cinematic Universe.
"Well… sure. And both of those you just mentioned [Runaways and Cloak and Dagger] we talked about for a long time and they went over to be successful TV shows. We've always been fans of Power Pack and figuring that out. And yes. So…where and when we would see the evolution of that? I don't know. And certainly – taking our cue from the comics as we always do – that's why we wanted Cassie, a very young Cassie in this movie, to be inspired by her father. Just planting seeds."
The Young Avengers are full of a lot of young heroes inspired by the heroes that came before them, so it makes sense that they would be showing up later on down the line. We can't have Kate Bishop Hawkeye until they established Clint Barton Hawkeye, and so on. It's why we haven't seen Kamala Khan (Ms. Marvel) yet, since it's a key part of Kamala's character to be inspired by Carol Danvers, whom we haven't seen yet. For now it looks like Marvel is keeping their options open to bring in these young heroes down the line but isn't saying anything definitive.
Summary: As Scott Lang balances being both a Super Hero and a father, Hope van Dyne and Dr. Hank Pym present an urgent new mission that finds the Ant-Man fighting alongside The Wasp to uncover secrets from their past.
Ant-Man and The Wasp, directed by Peyton Reed, stars Paul Rudd, Evangeline Lilly, Hannah John-Kamen, Michael Douglas, and Michael Peña. It will be released on July 6th.