Today's scoop drop ties to this week's earlier rumor from Devin Faraci that the villain of Justice League will be Steppenwolf and that he's after three Mother Boxes that are on Earth. According to infamous fanboy scooper El Mayimbe, there's much more to Darkseid's attempt to subjugate the Earth 30,000 years ago.
Supposedly, after the conclusion of the ancient battle with Darkseid, the team-up between "Man", the Atlanteans and the Amazons led to a war/feud between Atlantis and Themyscira. We've heard this rumor several times previously and it's continued resurgence means its likely true. However, this is where things get interesting. Apparently, Black Canary (or Black Canary's ancestor) was a member of that original resistance group that battled Darkseid's forces many centuries ago.
Gonzalez also reports that Cyborg will be the key to Batman, Wonder Woman and the rest of the Justice League discovering Darkseid/Steppenwolf's plan, which is a bit obvious, considering a Mother Box was used in creating his cybernetic body. Much more interesting is the possibility that the two remaining Mother Boxes reside with Atlantis and the Amazons respectively.