Aquaman and the Lost Kingdom will be the final film of the "DCEU" era before James Gunn and Peter safran's rebooted(?) DCU officially launches with Superman: Legacy, making the possibility of a third movie highly unlikely.
Even so, the fact that Gunn is keeping certain actors on as their respective characters (John Cena as Peacemaker, Xolo Maridueña as Blue Beetle, etc) meant there was always a chance Arthur Curry star Jason Momoa might reprise his role down the line.
However, the actor has now pretty much confirmed that he will be hanging up Aquaman's trident after James Wan's upcoming sequel.
During an appearance on Jimmy Fallon, the Game of Thrones alum said, "this is kinda the end of this DC universe," but he did add that "there will always be a place for me at DC."
Fallon then appeared to allude to the rumors that have been doing the rounds about Momoa taking on the role of Lobo in the DCU, but the actor didn't mention any specific characters.
We have heard that Momoa is now "locked in" as Lobo, and may even debut as the Main Man in Superman: Legacy. With the strikes at an end, an official announcement may be imminent.
"Having failed to defeat Aquaman the first time, Black Manta, still driven by the need to avenge his father’s death, will stop at nothing to take Aquaman down once and for all. This time Black Manta is more formidable than ever before, wielding the power of the mythic Black Trident, which unleashes an ancient and malevolent force. To defeat him, Aquaman will turn to his imprisoned brother Orm, the former King of Atlantis, to forge an unlikely alliance. Together, they must set aside their differences in order to protect their kingdom and save Aquaman’s family, and the world, from irreversible destruction.
All returning to the roles they originated, Jason Momoa plays Arthur Curry/Aquaman, no, after w balancing his duties as both the King of Atlantis and a new father; Patrick Wilson is Orm, Aquaman’s half-brother and his nemesis, who must now step into a new role as his brother’s reluctant ally; Amber Heard is Mera, Atlantis’ Queen and mother of the heir to the throne; Yahya Abdul-Mateen II is Black Manta, committed more than ever to avenge his father’s death by destroying Aquaman, his family and Atlantis; and Nicole Kidman as Atlanna, a fierce leader and mother with the heart of a warrior. Also reprising their roles are Dolph Lundgren as King Nereus and Randall Park as Dr. Stephen Shin."
Aquaman and the Lost Kingdom is set to swim into theaters on December 20.