‘Arrow’ season 5 to include Colton Haynes’ return as Arsenal
With just a few episodes left in Arrow Season 4, fans are already looking ahead to Season 5. It’s already been revealed Arrow’s getting a new villainous character, but now there is confirmation that Team Arrow will have Colton Haynes’ Arsenal back for a few episodes.
“I get to come back on a few episodes of Arrow next year,” Haynes told Heroic Hollywood.

Roy suits up and shows off his old skills, detonating Calculator’s nuke and escaping from an exploding building via zipline in the knick of time. Roy also takes time to visit Thea, who was dying from bloodlust at the time. The two confess their love for each other, but Roy leaves the next day.
TV Guide caught up with Arrow showrunner Wendy Mericle, who revealed Thea has a big decision to make in the Season 4 finale:
“Thea (Willa Holland) had bloodlust earlier in the season and since then has been questioning her place on the team, and questioning whether or not she is Speedy, which goes back to her character’s struggle with whether she’s more of a Queen or a Merlyn. She’s going to answer that question in [the finale] and come up with, what we hope, is a pretty surprising answer.”
Changing Thea’s role would open up more time for Arsenal, so stay tuned.