http://screenrant.com/female-superheroe-join-arrow/

Arrow’s fourth season dealt a major loss to longtime fans of the series. Katie Cassidy’s Laurel, who was also the Black Canary, was killed off late into the season by the Season 5 big bad Damien Darhk, played by Neal McDonough, which sent Team Arrow into a tailspin. It had a similar impact of fans of the series. The episode following her death featured a young girl who took up the mantle of the Black Canary to get revenge on her enemies. Some believe Felicity Smoak is being positioned to take over for Laurel. She was seen using the Black Canary’s baton during a fight and her mother’s relationship with Laurel’s father could result in her becoming his new daughter. In-Law of course! We are suggesting