The Flashis set to end after its ninth season, which will officially bring the “Arrowverse” on the CW to a close. Before that, showrunner Eric Wallace promised plenty of tears and a happy ending.

The Flashfirst aired in 2014. A spin-off ofArrow,The Flashstars Grant Gustin as Barry Allen, DC’s famous speedster superhero. The final season will consist of 13 episodes split into two “Graphic Novel” story arcs.

The Flash Season 9 return actors

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Speaking toEntertainment Weekly, Wallace said he felt a responsibility toThe Flashfans. “[This includes paying off] a lot of the hanging storylines from season 1, to plant some Easter eggs here and there for the fans saying thank you, to bring back as many familiar faces from the first season as I can story-wise, and most importantly, to provide the most emotional climax to the nine-year journey ofThe Flashand Barry [Grant Gustin] and Iris [Candice Patton] that I can,” Wallace said. “And do it in a way that gives the kind of happy ending that not only I want, but which the audience deserves.”

Wallace’s words about bringing back as many familiar faces as he can have thus far rung true. Ahead ofThe Flash’s final season, it was confirmed thatStephen Amell is returning as Green Arrow. Despite the character’s death in “Crisis on Infinite Earths,” Oliver Queen served as the lynchpin for the Arrowverse’s existence, having shared many team-ups with Barry Allen. How he’ll be brought back for one last adventure is, so far, unknown.

Interestingly, Wallace also revealed that fans will be able to guess howThe Flash’s final season will endlong before the credits roll. “Quite frankly, once I took over, I knew what the final scene and final shot of the series finale should be,” Wallace said. “I’ve known exactly what even the final line of dialogue should be. Everybody’s going to find out long before the ending because it plays into the title of the final episode.” The final episode’s title is unknown, but it will likely be revealed before the series finale airs. On the other hand, it is possible that the CW will choose to withhold the title of the episode before it airs to avoid spoilers - the tactic is not unknown.

Ironically enough,The Flashbegan airing around whenEzra Miller’sThe Flashwas announced. Given that Miller’sThe Flashwill release on June 16, The Flash may end its 9-year run before the film premieres, meaning that the TV show aired in the entirety of the time between the film’s announcement and its actual release date.

The Flashairs on Wednesdays at 8 PM EST on the CW.