The Flash is back for its final run, and so is one villain if we're to believe showrunner Eric Wallace. The greatest villain The Flash has ever had is the Reverse-Flash. We're meant to believe he was defeated for good back in season 8. We all know that's not true.

Eric Wallace recently spoke with Entertainment Weekly about the final season of The Flash. The showrunner seems to be teasing the return of the Reverse-Flash which... shouldn't be that surprising.

I think everyone knew that The Flash had to end with Reverse-Flash and Barry coming to blows once again. They've been through a lot, but there are still a  few loose ends that need to be tied up.

This is their final chance to do so!

"Every time Matt has been on the show, he's only played, no matter what version of it, one unforgettable character, and that is the Reverse-Flash. I don't see that changing this season. However, the question is how can he be alive when we all saw him die? And if he is still alive, what does that mean for Barry Allen? And that goes back to tying up loose ends from Season 1. That's all I'll reveal, but get ready for some sparks between Grant Gustin and Matt Letscher that will blow your mind."

Here's the synopsis for the final season of The Flash.

"After defeating the Reverse Flash once and for all, the ninth season of The Flash picks up one week later following their epic battle, and Barry Allen (Grant Gustin) and Iris West-Allen (Candice Patton) are reconnecting and growing closer than ever before. But when a deadly group of Rogues descends on Central City led by a powerful new threat, The Flash and his team — Caitlin Snow (Danielle Panabaker), Meta-Empath Cecile Horton (Danielle Nicolet), the light-powered meta Allegra Garcia (Kayla Compton), brilliant tech-nerd Chester P. Runk (Brandon McKnight) and reformed cryogenics thief Mark Blaine (Jon Cor) — must once again defy impossible odds to save the day. But as The Rogues are defeated, a deadly new adversary rises to challenge Barry Allen's heroic legacy And in their greatest battle yet, Barry and Team Flash will be pushed to their limits in order to save Central City one last time."

The Flash currently airs Tuesdays on The CW.

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