Brave New World' introduces Anthony Mackie as the new Cap, plus Red Hulk and other 'Hulk' characters into the MCU.

Brave New World has one post-credits scene that explains how Captain America 4 connects to future Avengers movies.

Brave New World. Captain America: Brave New World marks a new beginning for the titular hero, as Anthony Mackie officially takes over the role for his first big screen mission carrying the shield. But he better get comfortable with the vibranium accessory fast because the post-credits scene teases his biggest battle(world) yet — and it's coming sooner than he realizes.