Arrow fans who are familiar with the DC Comics are in for a treat today, with Entertainment Weekly debuting the first photo of Colton Haynes in his full Arsenal costume. Many fans have been waiting to see when Roy Harper will take on his Arsenal alter-ego, but they won't have to wait for too much longer, since Roy and his new Arsenal attire will be featured in the Season 3 Premiere, airing Wednesday, October 8 at 8 PM ET on The CW. Roy/Arsenal will be a "fully fledged member of Team Arrow" in Season 3, so get ready for even more arrow-slinging action as Oliver Queen (Stephen Amell) teams up with his new partner.

Take a look at the photo below, then read on for more Season 3 details from executive producer Andrew Kreisberg.

<strong><em>Arrow</em></strong> Season 3 Arsenal Photo

Caity Lotz played Sara Lance/The Black Canary on Season 2 of Arrow, but the Canary was seen leaving with Nyssa al Ghul (Katrina Law) in the season finale. When asked if Black Canary will return in Season 3, Andrew Kreisberg had this to say, teasing why she comes back to Starling City.

We have her [Caity Lotz] booked for three episodes, with hopefully more. She has come back to Starling City because she is on a mission... and that is all I can say."

When asked if Nyssa would be back as well, Andrew Kreisberg hinted that she will be back, without giving any confirmation.

"A lot of what we did in Season 1 was setting up Season 2. You can be assured that a lot of the things we did in Season 2 are to help set up Season 3."

There has also been a lot of speculation as to whether Nyssa's father, Ra's al Ghul, will be popping up this season. The executive producer teased details about Season 3's main villain earlier this week, which many have speculated is Ra's al Ghul. When asked whether or not fans will see the League of Shadows founder this year, he wouldn't confirm nor deny his presence.

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"You know us -- we're never one to do the logical thing! You know, I can't comment on that -- I can neither confirm nor deny. But rest assured, we have a lot of amazing stuff set up, mythology-wise, this year that will really feel like an extension of everything we've done before."

He also talked about the timeline of Season 3, which is set six or seven months after the Season 2 finale, when Oliver finally defeated the villainous Slade (Manu Bennett).

"Well, the show picks up six or seven months later, and he's actually in a really good place. Marc Guggenheim likes to joke, 'Everything's coming up Oliver.' He defeated Slade, crime is down in the city, the police have disbanded the anti-vigilante task force. You know, he's starting to get the feeling that there might be life beyond the hood, and that's really the theme of this season, for Oliver: 'Can I be Oliver Queen and be Arrow?' One of the things that the beginning of the season, especially the premiere, shows that, for right now, it's easier to be Arrow than it is to be Oliver Queen. Getting his company back and having a life are going to prove to be a lot harder than he suspected."

One of the several new casting additions already confirmed for Season 3 is former Superman Brandon Routh, who signed on to play Ray Palmer, a.k.a. Atom, earlier this month. Here's what Andrew Kreisberg had to say about where Atom fits into the story.

"I think, in the great tradition of shows when they hit Season 3, we're bringing on a game-changing character, somebody who's brought on specifically to shake up all the characters, and we are overjoyed and beyond thrilled that Brandon is willing to come on. First of all, he's such an amazing guy. Beyond that, he's just such an amazing actor. One of the things we really wanted to inject more into the show was humor. What's funny about Oliver and Felicity is that he's the straight man. She sort of gets all the funny lines. What's great about having Brandon on the show is Brandon's an old-time movie star. He's like Jimmy Stewart. He can play that rat-tat-tat, Preston Sturges, you know, His Girl Friday Friday with Felicity. It just brings a whole other energy to the show. It's similar for us when we brought on Grant [Gustin]. Like, we already had a Stephen Amell. So when we were casting the Flash, we wanted somebody who looked different and felt different and had a different energy. In a way, Brandon almost combines Grant and Stephen. He's obviously got the superhero looks and superhero physique, but he has the fun and funny and charm that Grant brings to Barry. Just from what I've seen so far in the dailies, we are so grateful that he's taken another step back into the DC Universe."

When asked how long it might be before Ray Palmer turns into Atom, the executive producer had this to say.

"Well, you don't bring Brandon Routh onto your show to not go down that path. As always with these things, how, when, where and why will be the journey of the season."

Another new casting addition is Katana, played by Devon Aoki, who will be seen in flashback sequences as a mentor to Oliver during his time on the island. Andrew Kreisberg revealed that they have been planning on bringing Katana into the show for a very long time.

"This is actually something we've been planning for a really long time. We had a couple of big ideas early on. One was that Sara was alive, and one was that, at the end of year two, Oliver wakes up and he's not on the island. So it's actually pretty amazing to be here, starting Season 3, and having so many of these big ideas come to fruition. You know, we're so excited by it, because for one thing, as fun as the island was, it did start to become very limiting. There was a limited number of characters, and sometimes we had to tread water to avoid hitting some big sign posts too fast. Sometimes we treaded water better than other times. One of the things that we really learned was that the audience now is able to follow along, and if we do an -out-of-sequence flashback, like seeing Dig's flashbacks last year or Sara's flashbacks, this year we're able to do more of that. Hopefully the flashback story feels more streamlined. Just being in Hong Kong and seeing -- you know, I think people assumed it was five years on the island, but there've been these hints all along, whether it was stuff Oliver said or his relationship with Amanda, where in the present there were hints that Oliver had a much richer life than five years on the island, and getting to explore that and seeing the kinds of things he did and the missions he went on and what kind of choices he was force to make. There's still some hope in humanity in Oliver, and I think the guy who comes back in the pilot is a pretty dark, tortured character. This is really the year where, as terrible as things have been up until this point with flashbacks, this is really where we're taking a big step into the darkness."

He also added that fans will get to see how large of an influence Katana really is to Oliver this season.

"You know, Oliver has many, many skills, some of which we've seen and some we haven't -- and Katana is going to be another surprisingly large influence on his growth as both a hero and a fighting machine."