Emily Bett Rickards will return as Felicity Smoak for the final episode of Arrow.On Twitter, Stephen Amell announced his longtime co-star's return to the series. "There’ll be a lot of news coming out about our final episode over the next few months," he wrote. "I prefer when you hear it from us. Welcome back Emily." The post was accompanied by a GIF of Rickards' Felicity.RELATED: Arrow Gives Fans the Reunion They've Been Waiting For

Rickards last appeared in the Season 7 finale. She announced her departure from the series in March, only weeks after Amell revealed the show would end with Season 8. Since then, it has been unclear if she would return for Arrow's final season. This Tweet, however, confirms Felicity will indeed be back in some capacity. Details about her role are being kept under wraps for now.

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In her last appearance, Felicity had made a home with Oliver Queen and their daughter Mia. They both retired from vigilantism for a spell, only for the Monitor to crash their peaceful life. The Monitor demanded that Oliver make good on his "Elseworlds" promise; as a result, Oliver left his family behind to travel the multiverse, running missions for the cosmic being ahead of "Crisis on Infinite Earths."

Felicity was left to raise Mia on her own and, as seen in the flash-forward timeline, became the head of her own tech company. She continued her vigilante ways as the Calculator, until her activities led her children William and Mia to become involved with a plot to destroy Star City in 2040. When that conflict resolved, she met up with the Monitor and said, "I've waited a very long time to see him." The Monitor opened a portal, and the two walked through it together. This was the last time she was seen in the Arrow timeline.

Airing Tuesdays at 9 p.m. ET/PT on The CW, Arrow's final season stars Stephen Amell as Oliver Queen, David Ramsey as John Diggle, Rick Gonzalez as Wild Dog, Juliana Harkavy as Black Canary, Katie Cassidy as Black Siren, Katherine McNamara as Mia Smoak, Joseph David-Jones as Connor Hawke and Ben Lewis as William Clayton-Queen.

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