I think maybe it is the priest from the ''Red Barn'' Episode, I still don't think that any of the 7 is Red John except maybe Bob Kirkland.
I do however think Van pelt is working for Red John , And i did'nt for one min believe  that Lorelei was telling the truth on the cd or is in any danger , But maybe is is pregnant for Patrick <<<<<<<Now would'nt THAT be something !!!!! ;)
Patricks own father was one of my suspects but i don't know if he is still alive or not , Just a thought.