' "The Great Red Dragon" - Following the shocking events at Jane's house, the Red John list is narrowed down further, and the CBI's priority is the remaining suspects, on THE MENTALIST, at a special time, Sunday, Nov. 17 (110:00-11:00 PM, ET/PT) on the CBS Television Network '
SOURCE
Who do you think is Red John?
The title of the new episode ties Red John and William Blake [again], and also ties Red John and the Book of Revelation:
---The Great Red Dragon and the Woman Clothed with the Sun by William Blake
Simon Baker and Robin Tunney talk about the Red John arc and about Fire and Brimstone, episode 6x06:
SOURCE 1
SOURCE 2
SOURCE 3