An Arrowverse TV show spinoff from Arrow is in the works at The CW that will see Mia Smoak take on her father's mantle as the Green Arrow in the future timeline. When The CW launched Arrow in 2012, it became the flagship series of their shared DC TV universe that has come to include The Flash, Supergirl, Legends of Tomorrow and the upcoming Batwoman TV show. This year, all The CW's DC shows will unite for the Arrowverse crossover event Crisis on Infinite Earths, which also brings Black Lightning into the fold for the very first time.
However, this year will also mark the end of Arrow with season 8, as Stephen Amell wraps up his time as Oliver Queen. The shortened season will see Oliver return to past points in the Arrow timeline, giving his character the sendoff he deserves as the founding father of The CW's TV universe and allowing killed off characters to return. The series will also continue to follow the future 2040 timeline introduced in Arrow season 7, which includes Oliver and Felicity Smoak's (Emily Bett Rickards) daughter. Now, it seems the flash-forward storyline will also work to set up a spinoff from Arrow.
According to The Wrap, The CW has put an Arrowverse spinoff into development in which Mia Smoak (Katherine McNamara) will take up the mantle of Green Arrow from her father. A backdoor pilot for the as yet untitled spinoff will be included as one of Arrow season 8's 10 episodes. The series will also feature Earth-1's Black Canary Dinah Drake (Juliana Harkavy) and Earth-2's Black Siren Laurel Lance (Katie Cassidy). In 2040, Dinah had started a group of female heroes operating under the name of the Canary Network.
Although no title or story details are available, it seems likely the Arrowverse spinoff will follow Mia as the new Green Arrow working with the Canary Network. It's unclear why Mia dons the Green Arrow mantle. When she was introduced in season 7, she wasn't fond of vigilantes or the Canary Network, but eventually became more of a hero in her own right. The Arrow season 7 finale also teased an important destiny for Mia, which seems to be directly setting up the new Arrowverse spinoff. While a backdoor pilot will no doubt further set up the spinoff series, Arrow season 8 will mostly focus on Oliver's journey and bringing it to an end. Still, an Arrow spinoff allows The CW to continue the stories of many of its characters while offering a fresh perspective on their DC TV universe.
That said, it's still early stages for the untitled spinoff. While The CW must have some confidence in the potential series if it's being granted a backdoor pilot in Arrow, there's a possibility the network chooses not to green light the show. After all, The CW's slate of DC TV shows is getting crowded, and expanding this year to include Batwoman. But with Arrow ending in season 8, there's certainly some room for a new series. The CW has found a great deal of success with their small screen DC universe, so it makes sense for them to be developing an Arrow spinoff. What becomes of this Arrowverse spinoff and how Arrow sets it up, though, remains to be seen.
Source: The Wrap