Five successors across Marvel's various future worlds continue to raise Captain America's shield in their own identities and with their own abilities. Although Danielle Cage, James Rogers, Steve Rogers, Roberta Mendez, and Shannon Carter have different experiences, they all ensure that the hope represented by the shield endures.
Danielle Cage of Earth-15061 is the daughter of Luke Cage and Jessica Jones, inheriting her father's super strength and impenetrable skin. She joins the Next Generation team to fight enemies like Thanos, relying not on the Super-Soldier Serum but still using the shield as a symbol of hope. James Rogers from the animated film Next Avengers: Heroes of Tomorrow is the son of Captain America and Black Widow; he grows into a leader in a world ruled by Ultron and inherits the skill of fighting with a shield.
Steve Rogers of Earth-9997 retired after killing the Red Skull. To stop Skull, a villain who inherited his ideology, he picked up the shield once more, ultimately sacrificing himself and continuing to guard souls in an angelic form.
In the 2099 universe, Roberta Mendez develops a second personality known as "Captain America" following Alchemax experiments, wielding hard-light wings in addition to her shield. Shannon Carter of Earth-982 joins A-Next under the name American Dream, carrying on the ideal through her own combat skills and various shields. These five characters come from different parallel timelines and are not part of the official lineup for Marvel's new comic main storyline or film and television projects.