Felicity looks incredibly happy at the conversation she's having with the man she loves. This is surprising given the close proximity of Oliver and his new wife. Perhaps they have spoken about what his marriage really means to him and how much he loves the woman he left behind.
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This is a surprisingly gentle moment between Oliver and Nyssa. With a simple touch of their hands, it seems they have reached some sort of communication wherein they may be working together toward a common goal, at the very least.
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It surely cannot be a coincidence that this pair of forlorn lovers is framed by the electric blue of fluorescent lighting as they must be about as blue as they can be given their strange and unfortunate circumstances.
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Team Arrow is up to old tricks as they pull out all the tops to try to stop Ra's from enacting his devastating plan upon Starling City by releasing a bioweapon that would kill everyone.
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Oliver and Felicity are together again, but this time he's married to another an on his way to becoming the leader of the League of Assassins. We can assume things are not the same as the last time they met.
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See that little bag Felicity is cradling in her arms? Inside it is her knee-skirting winter coat and her pumps, as well as her other outfit and whatever else she brought on the trip. It's a magical bag. Where can I buy one??
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OK. Tell me if it's just me, but the way Diggle and Malcolm are leaning in just right, it looks like they're about to start waving their arms and seconds away from bursting into song. It's a barbershop quartet you guys! Here's hoping they pulled it off for the gag reel.
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In the trailer we know Felicity asks for help, although it seems unclear why. Isn't it kind of obvious they need an assist when he showed up and they were under lock and key? Unless they've been reading 50 Shades of Nanda Parbat, I think help is a foregone conclusion despite his brushing it off with, "I think you got this."
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Arrow Quotes

Laurel: Helena, you don't have to do this.
Helena: Yes, I do. Because once you let the darkness inside, it never comes out.

There are people in this world who deal only in extremes. It's naive to think that anything less than extreme measures will stop them.

Amanda