Laurel looks like she's comforting Diggle, or perhaps pursuading him not to drink too much in the wake of his news. Where is Lyla? She's always home with the baby. Did Sara even get to see the child who was named after her?
Felicity: What's going on? Ray? Ray: Oliver Queen is the Arrow. Felicity: What? Ray: I have a 140 IQ and three PhDs, but it's pretty hard to insult my intelligence, but I'm pretty sure you just did. It all makes sense now. Your, ah, sudden disappearances, your apprehension of helping me with my mission. You've been working with the Arrow this whole time.