Wonder Godmother
What I'm about bring up is a major What-If in the DC Universe that I don't think has been explored, but I also wanna make one thing clear, this is NOT related to Flashpoint. I've been an exploring a Batman idea that asks the question of "What if one parent lived and became a widowed single mom Batwoman?" The idea I'm having for Wonder Woman and Steve Trevor (who would be Aquaman) is to have them be the co-founders of a Justice League that is geared towards helping to maintain the protection of the planet and its citizens.
Not only that, but they would also be in a loving marriage and their union would help unify their respective kingdoms. Now their story would be similar to the 2017 movie, but Diana's mother, Hippolyta would've been the one killed and Steve would've survived that plane explosion (with help from a Green Lantern). They would still be appearing young by 1989, when Bruce Wayne, Selina Kyle, Clark Kent and Lois Lane are born, but I haven't figure out that immortality trope yet. And to give a brief explanation of how Martha would become Batwoman, it would stem from Thomas dying on the night that Bruce is born.
Now my title should explain to you that both Wonder Woman and Aquaman would be the oldest members in the entire Justice League, but that would also not stop them from bonding with the four children, nor would it step them from taking in Kara Zor-El as a potential protege (who would appear along with her baby brother and not be trapped in a time freeze). I visualize them teaching the children how to fight and also teach them things that would be more advanced than public schools would teach you.
But with a unified kingdom, comes a world that has created technology more advanced than what "Man's World" would have created and one piece of that tech would involve nanotechnology that Thomas Wayne developed, bonds with Martha, and creates her Batwoman suit.
What do y'all think of that world?