The Heroes & Villains Fan Fest is a convention that gives fans the chance to meet the stars of their favorite TV shows and movies. On Jan. 23 and 24, the event comes to the Meadowlands Exposition Center in Secaucus, N.J., and features "Arrow" star and SummerSlam 2015 competitor Stephen Amell, along with his "Arrow" castmates John Barrowman and Katie Cassiday. However, a video posted to the event's Facebook page suggests there may be a surprise cosmic guest in the form of WWE Superstar Stardust.

Since last May, Stardust and Amell have been embroiled in a bitter rivalry on social media that resulted in a tag team match at SummerSlam 2015.

Watch SummerSlam 2015 on WWE Network | Stephen Amell's memorable WWE moments

Although Amell and Neville were victorious against The Prince of Dark Matter and King Barrett, the rivalry hasn't stopped. Recently, Amell won the Slammy Award for "Best Celebrity Moment," which honored his dive onto his SummerSlam opponents, but Stardust stole the trophy and has used it to taunt the "Arrow" star on social media.

Will Stardust actually show up to confront Amell? Or is he just continuing to taunt the Slammy Award-winning actor?