Arrow season 3 definitely had lots of ups and downs between Oliver(Stephen Amell) and Diggle (David Ramsey). The two shared a strong bond and as watchful guardians over Starling City but season three saw a decided shift in their relationship. Diggle was not too keen on Oliver's plan on how to combat Ra's al Ghul (Matt Nable) and The League of Assassins and rightfuly so, as it put his family in danger. But will the two, stay at odds throughout the entirety of season 4? And if not, how soon will their relationship be repaired. Speaking to Collider, Arrow executive producer Wendy Mericle weighs in. "Dig has a huge bone to pick with Oliver when they see each other again, at the top of Season 4. We’re gonna work that out. It’s not gonna be easy. With what happened to Dig’s family, it’s really tough to buy that back, and Oliver is not gonna to be able to. Obviously, they can’t be mad at each other forever, or what are we doing? But also, in the intervening months while Oliver has been gone, Dig has, more or less, been leading the team. It’s a little bit more democratic, Speedy and Black Canary are both super bad-ass and kicking butt. He’s not happy, when he and Oliver meet again. It’s not an open-armed, “Hey, buddy, all is forgiven,” reunion."
Speaking of Diggle. it has previously been confirmed that Diggle will be getting a mask to protect his identity as the new leader of Team Arrow in Oliver's absence. But what about his code name? Will it be 'Guardian' as many Arrow fans presume? " By necessity, he can’t be Diggle out in the field. I can’t tell you what the code name is, but he’s gonna have a fun, cool code name. He’ll start to embrace a little bit more of that dual identity conundrum that Oliver has been grappling with for three years now."
Arrow season 4 premieres October 7th at 8PM on The CW.