I think that Patrick Jane has already figured out who Red John is, but he does not want to let Lisbon and the team in on what he knows. He wants to set the trap for Red John in his own way, and he has been doing that by acting scared and pompous at times to make Red John think he is off of his game. In almost every episode the team does not know what is going on until Jane solves the crime, so why would Red John be any different? 

Also, I think it's obvious that Jane knew that as soon as he told Lisbon about the suspects that she would tell the team. They have worked too long together for him not to know that. Therefore, he is just controlling the information they have, while also making them think they are on the same level as him. The reason he is doing this is because he knows Lisbon would not allow him to seek his revenge, and also because Red John has eyes and ears within the CBI. As the second episode of season six proved, Red John cannot read Jane's mind, and the only way Patrick Jane can keep his plan secret from Red John, is by only allowing it to stay within the confines of his mind.

Also, I believe Red John will end up being Bob Kirkland. Bob has done some very obvious things that would put us off his trail like killing Jason Lennon in the hospital, and having Homeland agents steal Patrick's board. On stealing the board, the reason I think it is Bob is because he is the one examining it and trying to figure it out, and I cannot see him passing that task off to one of his minions. He wanted to go head to head with Jane, and come out as victor. Also, I think it is very telling that Kirkland asked Lennon if he recognized him, and he said no; I think we are deliberately being put off Bob's trail by the writers of the show. We know Red John has great mind control over his disciples, and Lennon saying no can be easily explained. Also, the fact that Bob kills Lennon himself is another way the writers are trying to divert our attention from him, because Red John's friends are usually the ones that clean up these messes, so we think Bob must be a friend and not the real deal. However, in this situation it had to be Red John himself, because he was able to kill Lennon and never be suspected by authorities, but clearly Jane is suspicious.

Additionally, Red John is highly intelligent and is able to manipulate people into following him. Bob appears to have great control over Gale Bertram and other people that are high up in the CBI and FBI. He also keeps a relative distance from Jane and keeps a meek disposition when Jane is around, which is another "red" flag, no pun intended. He knows that he cannot let Jane get too close because Jane would see him for what he really is. This is one reason I believe it could not be Ray Haffner, because Haffner has been popping up and asking strange questions and not acting like a man that has Red John's stature. I think Haffner believes if he catches Red John before Jane, then Lisbon will want to be with him.

Also, Bob appears to be very gentle as Rosalind Harker describes, and he appears to be intrigued with Lisbon. Ray Haffner strikes me more as a bull in a china shop type, and is inflated by his own ego. I think for Red John to be able to possess so much influence and mind control he would have to be more like Bob, because maybe the people do not even realize what has happened to them until it is done.

The last thing that puts him in my sights is that Bob has not shown up in any of the episodes thus far. I realize that Bret Stiles has not either, but it was odd that Bob would not have been in that meeting with Bertram, McAllister and Smith. Or was he in the back room like before, listening as Jane barges in pompously declaring that Red John made a mistake?

Also, I want to see J.J. LaRoche come back and help Jane set the trap for Red John. Also, I want to know if Lorelei still alive and if she will play some role in helping Jane? Anyways, I am just some food for thought. What do you think?