Marvel movies rarely recast important characters since establishing a strong continuity is one of the cornerstones that support their success.
2With a few exceptions, like Terrance Howard replacing Don Cheadle in Iron Man 2.
Marvel has chosen Harrison Ford should replace the late William Hurt in future MCU productions as General Thunderbolt Ross.
The Marvel cinematic universe's producers would rather kill off a character than recast them.
The way Marvel has chosen to manage the Black Panther franchise is the most noteworthy example of the approach.
T'Challa will mysteriously be written out of the upcoming Black Panther: Wakanda Forever.
T'Challa, an important Black character, was killed off-screen, which sparked controversy.