User blog:MemoryAngel/The Ethereal Divide in S7?

So I and some other people noticed that the term "Ethereal Divide" and "Ethereal Realm" we're used. Some person made a theory that the Ethereal Divide has some sort of connection to season 7. But what ,if any, connection is this?.

I was thinking that maybe villains whose souls and some villains whose bodies were destroyed, were sent to this void, and the new season 7 weapons are what are used to extract them from this void. But since Pythor (Who is now good) is evil in this season, I think it's something more cryptic. Maybe this ethereal void is where past events are sent, kind of like an archive of past outcomes. Idk but what do you guys think?.