Captain Marvel' post-credit scene confirms 'Endgame' fan theory?

A post-credit scene in "Captain Marvel" could enormously influence what happens in "Avengers: Endgame."

Avengers: Endgame' writers confirm huge Captain America fan theory

Ten Avengers Endgame Fan Theories From Around the Web

Brie Larson was announced as our Captain Marvel exactly 7 years

Will We See Dr. Strange In Captain Marvel's Post Credit Scene

Captain Marvel's biggest post-credit scene raises important

Theory Links Avengers: Endgame To Captain Marvel Post Credits

10 Fan Theories About Avengers: Endgame That Are Confirmed To Be

MCU: 5 Things We Know About Captain Marvel 2 (& 5 Fan Theories)

Avengers: Endgame poster controversy: Danai Gurira name added