User blog comment:Eobard95/Is Laurel in 5x09 actually Earth-2 Laurel?/@comment-25088123-20161214032005/@comment-28124898-20161214050107

I read that they did do this in the comics and the suriving Arrow/Canary moved to other earths to be with one other after they both lost their own orignal Aroww/Canary