Board Thread:General Discussion/@comment-26373999-20170331110735/@comment-24152851-20170519002927

If it is John Stewart, he's got a empty slot to fill for archnemesis, so I guess they could do something with Hector.

My point still stands that CW swaps archenemies around. Most superheroes only have one archenemy (unless you're Spider-Man), but in Arrowverse virtually every Big Bad is an archenemy to the hero, so they have to borrow from other sources.