Paul Blackthorne Is Arrow's Latest Final-Season Encore per TVline. Unknown how he is coming back since Quentin Lance was killed off in Season 6. If the Monitor can bring people from the future to the present I guess he can bring people from the past to the present. Another possibility is Earth X Nazi Quentin finds his way to Earth 1. They said Oliver doesn't go to another Earth this season other than in Crisis but that doesn't mean someone from another Earth can't come to Earth 1.