I heard about this episode featuring a big reveal, so when Ras asked Oliver to take his place I wasn't totally surprised. Most of the tension was lessened though when both Diggle and Oliver were captured as I didn't expect either one of them to be killed. Same thing with Thea releasing Nyssa from her cage. Ultimately I don't see him taking the position, if Team Arrow is furious he is working with Malcolm, imagine how they would feel if he became the new Demon Beast
It was a funny line when Laurel asked "Since when do we keep prisoners now?" and Felicity was like Oliver has a whole island prison
Not sure how I feel about Atom now, as for the most part it seems separate from all the main story-lines going on.
On the positive side, all the secrets regarding the death of Sara are out now.