Oliver sits with the man known as the Calculator. Rumor has it he will also be her father. I can't imagine Donna Smoak dating this guy, can you? They look happy now, but I bet that's gonna change. You don't get a code name for nothin'.
Curtis has the same smile on a different day. Over the course of these photos, we see Curtis in three different outfits, so several days must pass. It's been a while since we've seen this kind of business action!
Perhaps Nyssa is making her entrance. She's back during "Unchained" to make her move. I'm assuming this is her move against Malcolm Merlyn, but I'm not sure why she'd have to come to Star City to do it, since he should be ruling of the League of Assassins out her way.