• Actor Colton Haynes attends the John Varvatos Spring/Summer 2017 Fashion Show at The Django at Roxy Hotel on July 14, 2016 in New York City.

Actor Colton Haynes attends the John Varvatos Spring/Summer 2017 Fashion Show at The Django at Roxy Hotel on July 14, 2016 in New York City. (Photo : Getty Images/ Astrid Stawiarz)

There is a big possibility that Green Arrow's former protégé, Roy Harper/ Arsenal (Colton Haynes), will return in "Arrow" Season 5. As Oliver Queen (Stephen Amell) is expected to bring in new recruits, Echo Kellum confirmed that viewers could see him donning the Mr. Terrific suit in the upcoming season.

Like Us on Facebook

Season 4 ended with a lesser roster of crime fighters with the death of Black Canary (Katie Cassidy) and Diggle (David Ramsey), Thea (Willa Holland) and Captain Lance (Paul Blackthorne) leaving the team Arrow. In "Arrow" Season 5, fans could expect Queen to gather new members drawing speculations that it could be the right time for his former sidekick Roy Harper/ Arsenal to return.

The rumors grew even more when Kellum teased a Snapchat photo of him and Haynes in the set of The CW superhero TV series in Vancouver. The photo which was shared on the official Facebook page of Arrow seemed taken from a trailer of the first episodes of Season 5.

"Arrow" Season 5's plot which reportedly going to focus more on getting back to its roots seemed a perfect timing for Harper to return. He has been Oliver's beloved sidekick since Season 1 and his return will be a great advantage for Oliver's much needed team building, Screen Rant reported.

Haynes left Season 3 as regular and made a brief return in Season 4 after confirming that he faced anxiety due to some personal issues with coming out. In May, the former "Teen Wolf" actor admitted that he will return for a few episodes of the upcoming season of "Arrow."

Another vigilante added to the team "Arrow" which is expected to be of great help to Queen is Mr. Terrific, portrayed by Kellum. The actor played as Curtis Holt in Season 4 and his transformation in "Arrow" Season 5 as a DC Comics superhero could be finally seen before the winter.

"The mask is happening this year," Comic Book Resources quoted Kellumas saying. "You can definitely expect it in the first nine."

Haynes has not commented on his possible return next season. "Arrow" Season 5 is slated to return to The CW on Oct. 5.

Check out the news about Hayne's appearance at the "Arrow" set: