http://www.cinemablend.com/new/What-Aquaman-Flash-Actually-Do-Batman-V-Superman-72052.htmllink?
The site goes on to speculate that Aquaman being held in a containment chamber could allude to actions that will be followed up on in David Ayer’s Suicide Squad. We had heard that Amanda Waller (Viola Davis) might have Aquaman’s trident in a trophy room at her headquarters, which would be an obvious indicator that she has Aquaman imprisoned.
As for The Flash, the wording of this scoop leads me to believe that we won’t actually see Ezra Miller in character, which explains why we haven’t yet seen a still of the hero the way that we have seen Aquaman and Wonder Woman in official imagery. It’s starting to sound like there will only be a speedy blur, and fans will nod their heads and say, "Yep. Flash." Then they’ll sit back and wait for the reported The Flash movie, also in 2018.