User blog comment:TheDoctor230/Oliver's Love Interest/@comment-26624146-20170615104611/@comment-27700324-20170617020325

Again, Laurel coming back wouldn't affect the characters that much. We have seen it in "Who Are You" when Black Siren pretended to be Laurel. So i just think nobody would be suprised. Earth-38 should merge with Earth One though.

Black Siren just isn't a possible scenario when she doesn't want to change as a person and atone for her murders.