[quote=@BingTheWing]
EDIT: Possible stupid question, but could we also submit characters villainous in their mainstream universes as heroes in this one, if plausible? [b](E.g. Black Manta as an Aquaman alternative, etc.)[/b]
[/quote]

Oh god, please. Black Manta is like Eobard Thawne but with a really big hate-sized whale boner for Aquaman. 

[img]https://i.kym-cdn.com/photos/images/original/001/383/286/9c4.png[/img]