For much of this season on “Arrow,” we’ve seen teasers aplenty regarding the status of a certain Prometheus. He is the Big Bad for the year, a person with a mysterious past that is somehow connected to Oliver Queen. He’s certainly a villain, but he does not act without intention. He wants to destroy the … Continue reading ‘Arrow’ season 3, episode 9 preview: ‘Who is Prometheus’ may finally be answered in winter finale