Looking at if replacing the original Marvel line up will have a negative impact on the Marvel Cinematic Universe.
They don't have Spider-man or the X-men and looking at the comics, they have never replaced the core members. I know DC did it with Justice League and did it well, but I don't think Marvel can do it. I'd be glad for them to prove me wrong, but I don't see a team with out at least one of the three doing well.
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