Fans are in for a treat once Executive Marc Guggenheim unveil the first ever "Arrow" season 4 trailer that will blow everyone's minds!

@MericlesHappen and I just watched the rough cut of the Arrow Season 4 trailer. Oh boy...

— Marc Guggenheim (@mguggenheim) August 25, 2015

This might be already out there but fans can't wait to see Oliver Queen in his new costume and how he will be re-introduced as the Green Arrow.

"He can't be the Arrow anymore, because everyone believes that Roy Harper was the Arrow, and Roy Harper is dead, at least as far as everyone believes," the EP told Green Arrow TV. "So, he had to adopt a new identity. All of this is explained in the season premiere; we come straight out with it."

Also, EP Wendy Mericle gave a different approach on Oliver's big transformation as she told HollywoodLife.com at a summer press tour in Beverly Hills that Oliver will finally be free from the past that held him from being truly happy.

"We sort of look at season four, not as a reboot, but sort of as a big shift for Oliver Queen's character. In this season, he's in a completely different place. He's happy, and in love!" she said.

However, she also stated that it will not be a smooth ride for both characters and even said that there will come a point that their relationship will be on the rocks.

"It's going to be challenging," said Mericle. "It's going to be fun to see them maintain this relationship through the ups and downs of a lot of big challenges coming there way."

Mericle also shared the reason why they ultimately decided that Oliver Queen and Felicity Smoak should be a couple: "It just felt like the way it needed to go, they were ready for it. That doesn't mean, obviously, [that] they'll always be together. In these things, nothing goes smoothly in Shakespeare or on our show in the course of love, and they're going to have their fare share of challenges, but it felt like the right time."