User blog comment:Eobard95/Is the new Canary actually Laurel's mother?/@comment-27700324-20170206195502

Not a good theory. Certainly better than your darn Black Siren theories. Still this wouldn't work because large plotlines on a show being created by a different show wouldn't be good and would limit the writers if they did.

Plus i respect Alex Kingston and wouldn't want them to replace her with a younger actor like she is disposable. You could do that for baby Sara cause that baby isn't an actor and didn't turn in an actual performance in each episode she was in.