The Flash: Katherine McNamara teases Arrow spinoff answers in her return to Mia Queen

The final season of Arrow did a lot to wrap up Oliver Queen’s journey, but it also laid some groundwork for a potential future-set spinoff focused on his adult daughter picking up his mantle. The only problem? The CW didn’t go forward with the spinoff.

But don’t worry, it sounds like some answers are finally coming.

We already knew Katherine McNamara, who has played Oliver’s adult daughter Mia Queen across the Arrowverse these last couple of years, would be returning for The Flash’s big Season 8 “Armageddon” kickoff event. She’ll be joined by several major heroes, including alums from Legends of Tomorrow, Black Lightning, Supergirl and Batwoman.

McNamara chatted with TV Insider about her return in the Flash season premiere, which is set to air Tuesday, November 16 on The CW. She couldn’t say much, but McNamara did confirm the Mia fans “know and love is back,” and teased her return will aim to answer some of the lingering cliffhangers from the future-set backdoor pilot in Arrow’s final season.

“There were a lot of questions left and a lot of unanswered plotlines and things like that that people have been wondering about — where is Mia and what has she been up to and how has all this affected her story moving forward? We get some information on that moving forward, as well as, of course, Mia gets roped into the whole 'Armageddon' of it all,” she said. “[T]hey wrote a story for Mia that really means a lot, and I think will mean a lot to the Arrowverse fandom as well… I had a moment putting on the suit, which is something I didn’t think I would ever get to do again, for the first time back at my fitting. And I teared up a little bit because it feels like home and it just feels right.”

McNamara revealed she spent most of her time with the cast of The Flash in the event (which isn’t much of a surprise, considering this crossover is all taking place within episodes of The Flash), and that in addition to her superhero gear she will also don a “cocktail dress in heels,” possibly infiltrating a fancy event undercover, perhaps?

As for whether or not she’d return again beyond the “Armageddon” event, she said she “would love to go back” to the Arrowverse whenever any opportunity arises — be it on Legends of Tomorrow, Batwoman, Superman & Lois or The Flash. Considering Mia remains an orphaned superhero (not just in the parental sense, but also because she doesn’t have a primary TV show at the moment).

One place she could potentially fit in down the line? Legends of Tomorrow. The time-hopping team-up series has never been shy about picking up heroes without a clear place to fit, and seeing Mia side-by-side with Sara and the rest of the gang could make for a great twist at some point down the line.

The Flash returns for its eighth season on Tuesday, November 16 on The CW.