Writer David Leslie Johnson in his Twitter shared the details of the plot of Spin-off "Aquamena", called "deep-water":
Theoretically, everything will occur between the events of the first and second "Aquames". But some details are still worked out.
At the moment, Johnson is working on the script "Aquamena 2", which should appear at the rental earlier "deep-water". Therefore, the statement that some details in spin-offs may change over time, looks quite natural.
Earlier, the director of films about Aquamena James Wang, a famous master of creating Horrora, said that at least the film and will occur in the film DC, but it will be more horror than a film about superheroes. It is possible that the film will not be Arthur Carry / Aquamena (Jason Momoa). But there will be a lot of terrible underwater creatures that are divided with aquamen ocean. They entered the Carry Arter and Measure (Ember Herd) to the fight in one of the episodes of the first film. And won the right to a separate film in this fight.
The premiere of the film "Aquamen 2" is scheduled for December 2022.