User blog comment:Eobard95/Are the Legends returning to their own shows?/@comment-27700324-20170326113924/@comment-26624146-20170326133756

I think Nate would fit in with Team Arrow and as I said they'd only stick around for the final 3-4 episodes of Arrow then when Legends starts next year they'd be re-recruited.

An upcoming episode is called "Dangerous Liaisons", which is an English translation of the French novel Les Liaisons dangereuses, and considering what that story is about, that's what got me thinking Black Siren is coming back. Also the fact that Katie Cassidy is appearing in the final Legends episode yet they haven't specified between Black Canary or Black Siren, and how the following Arrow and Flash episodes are taking a month break as got me thinking that more so.