We are nearly a month out from when "Crisis on Infinite Earths" begins and the Anti-Monitor launches his attack. However, Arrow showrunner Beth Schwartz has not ruled out a pre-crisis appearance by the villain.Doing an open Q&A on Twitter, one fan asked if the Anti-Monitor would make his debut on Arrow before the crossover began. Schwartz played coy, only offering a shrug emoji before moving on to the next question.RELATED: Arrow Brings Back Another Major Character for Final Season

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.

"Crisis on Infinite Earths" begins Sunday, Dec. 8 at 8 p.m. ET/PT on Supergirl, then continues in Batwoman on Monday, Dec. 9 at 8 p.m. ET/PT and in The Flash on Tuesday, Dec. 10 at 8 p.m. ET/PT. After the winter hiatus, the crossover will conclude on Tuesday, Jan. 14 in Arrow at 8 p.m. ET/PT and in DC's Legends of Tomorrow at 9 p.m. ET/PT.

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