With Arrow on course for a sixth season renewal, showrunner Wendy Mericle confirms work has already begun on the plotting next chapter, which will take a deep dive into the Oliver and Felicity relationship, per SyfyWire:
We wanted to honor the reality of, it’s always hard to work with somebody you really care about. In season four, we saw them work together while trying to maintain a relationship. Now, they’re working together in the context of not knowing what their future is, romantically.
I think both sides provide — having them together and apart — certain types of storytelling opportunities. This season has certainly given us different ones. But I think ultimate the key thing, and i think is true for so many series, especially ones where you’ve been fortunate enough to go to 100 episodes and beyond, that you have that central core relationship and as writers you have that opportunity to explore it. And you can take it many different directions. We definitely have some ideas about where we’re headed in Season 6. We’ll see where that goes.
Stay tuned as we continue to monitor the renew/cancel status of Arrow Season 6…