From what TVLine.com is saying. "At the conclusion of Dexter‘s Comic-Con @ Home panel on Sunday, Showtime released the first trailer for the series’ forthcoming revival (AKA Season 9), which will premiere Sunday, Nov. 7 at 9 pm."
Here's what TVLine.com say about the storyline. "It comes roughly a month after the premium cabler released the first footage from the 10-episode limited series, which finds Michael C. Hall’s titular vigilante living in the fictional Upstate New York small town of Iron Lake under the assumed name Jimmy Lindsay."