The "reintroduction" of this character to DC Comics following its 2011 The New 52 reboot, which removed Wally West from continuity, was first announced in January 2014.
Rebirth retroactively established that the character's father was not Rudy, as previously stated; he was the son of Iris's other brother, the then-recently introduced Daniel West, also the latest incarnation of Reverse Flash, who had redeemed and sacrificed himself as a member of the Suicide Squad.
4) Annual #3 (June 2014) in a story set twenty years in the future, when a jaded, older Flash (Barry Allen) reads about the character's funeral and vows to change history.
It features Wally West watching his younger cousin, Wallace, from outside of time, proud and amazed that he too has become a speedster, and reflecting on how they are both named for the same grandfather.
After the Future Flash cripples his younger self in their fight and disappears into the past, Barry finds that Wallace has been imbued with the Speed Force.
Wallace absorbs the excess Speed Force energy that is tearing apart the present Flash and tells him to not give up and that he only learned to be a hero because of him.
[13] Additionally, Wally is described as "a bit of a wayward kid who has some attitude problems and some authority issues and is quick with a sassy remark".
[14] Ace West / Kid Flash makes a non-speaking cameo appearance in Justice League Dark: Apokolips War as a member of the Teen Titans who is killed by Darkseid's Paradooms.