At the recently held Comic-Con, some of the cast members and showrunners of Arrow revealed some very interesting bits about season 4.

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TVLine reported from the event and got some pretty juicy quotes from the cast members. The most exciting revelation was made by Paul Blackthorne, who plays Quentin Lance in the CW series, and John Barrowman, who plays Malcolm Merlyn.

Barrowman said that the season 4 premiere will leave fans going "What?!?!"

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Blackthorne seconded Barrowman's view and made the premiere sound even more compelling.

"Especially the last scene," he said. "That last scene is gonna haunt the rest of the season."

Previously io9 also got some pretty great insight about Oliver's fate at the event from none other than Stephen Amell himself.

Amell said that he wouldn't make the transformation to his new alter ego as quickly, and suggested that fans who like seeing Oliver in civilian mode "are going to be really excited.

"One of the things we lost in half of season two and season three was the public persona of Oliver Queen," Amell said. "It's really important that I get out there, doing things."

The announcement of Arrow's renewal for a fourth season was made earlier this month.

The finale of season 3, entitled 'My Name is Oliver Queen,' of Arrow aired on May 13 on The CW.

Watch the promo teaser for season 4: