In "Avengers: Endgame", they had Captain America go back to the 1940s to retire, then, in his 90s, hand over his shield to Sam Wilson/The Falcon so that Sam could be the new Captain America.
They also had Sam become Captain America in the comics in 2015, and it flopped.
So now Captain America is black. huh. The assassination attempt is really uncanny!
In "Avengers: Endgame", they had Captain America go back to the 1940s to retire, then, in his 90s, hand over his shield to Sam Wilson/The Falcon so that Sam could be the new Captain America.
They also had Sam become Captain America in the comics in 2015, and it flopped.