My new theory is about Marcus Pike and the purpose he is serving in the show recently. If what I think is correct, I think that he was sent by Red John the matchmaker to seduce Lisbon so Patrick would be jealous, confess his love, and live peacefully before he start digging again in his memories for answers. However, I believe that PJ is aware of what is happening and knows that RJ will never leave him alone. As for why I think RJ is still alive and doing well is because Bruno Pigeon Heller left us with so many hanging threads.

Here is the press release for the season finale (or the series finale)

A REOPENED COLD CASE COULD BE THE LAST TIME THAT JANE AND LISBON WORK TOGETHER UNLESS HE’S ABLE TO ADMIT HIS TRUE FEELINGS FOR HER, ON THE SIXTH SEASON FINALE OF “THE MENTALIST,” SUNDAY, MAY 18

“Blue Bird” – A new lead in a cold case requires Lisbon to delay her plans to leave for Washington, D.C. with Agent Pike, giving Jane time to finally come to terms with his feelings for her and decide on a course of action., on the sixth season finale of THE MENTALIST, Sunday, May 18 (10:00-11:00 PM, ET/PT) on the CBS Television Network.

CHEAT TWEET: Will Jane lose Lisbon 4ever? 1 case gives him a last chance to admit his feelings! #TheMentalist season finale 5/18 10pm http://bit.ly/1mj5pjx 

SERIES REGULARS:
Simon Baker (Patrick Jane)
Robin Tunney (Teresa Lisbon) 
Tim Kang (Kimball Cho) 
Owain Yeoman (Wayne Rigsby) 
Amanda Righetti (Grace Van Pelt)
Rockmond Dunbar (FBI Agent Dennis Abbott)
Emily Swallow (Kim Fischer)

RECURRING CAST:
Joe Adler (Wiley)
Pedro Pascal (Marcus Pike)

GUEST CAST:
Skylar Brown (Colt)
Josiah Blount (Barry)
Kara Royster (Kiley)
James Austin Kerr (Vince)
Genesis Sol (Randa)
Vincent Spano (Don De Jorio)
Nicole Cannon (Megan Shapiro De Jorio)
Jason Brooks (Ted Randolph)
Haley Hudson (Christie De Jorio)
Victoria Smurfit (Monica Giraldi)
DeWanda Wise (Tanya Dean)
George Finn (Wes Baxter)
Nicole Greenwood (Receptionist)
Jodi Fung (TSA Officer)
Jessica Hopper (Stewardess)
Darren Dupree Washington (Air Marshal)
Cinda Adams (Middle-aged Lady)
Michael Dean Connolly (Well-groomed Man)
William Duffy (TSA Agent #2)
Blue Deckert (Chief Muller)
Orestes Arcuni (Waiter)
Elizabeth Deo (Airline Clerk)

WRITTEN BY: Bruno Heller
DIRECTED BY: Chris Long

You know I always thought that episode 8 being Kim Fischer's dream was plausible, because the little girl in the house that RJ crashes through looks so much like Kim. And the episode was so weird and stupid, like any person's dream. The only problem would be explaining it to the viewership. I mean how do you convey later on that it was a dream, and specifically Fischer's dream? I know it would be a bullshit move, but recently everything is a bullshit move.

We know Jane is going to have to answer for the events of episode 8, in the next episode. 

*MINI SPOILER* Kim Fischer actually gets shot next episode. *MINI SPOILER* This is a great way for her to pass out, and re-visit the same dream and little bits of episode 8 flash through her head, ending with McAllister crashing through the glass door. Then she wakes up in hospital. 

Lisbon: "It's ok. You're safe."
Fischer: "Oh, just... dream... Did Jane ever tell you what Red John said when they met?"
Lisbon: "No... I never asked."
Fischer: "Well, we'll find out tomorrow."
Lisbon: "Yea..."

Next Scene.

Jane is in front of the grand jury. *Enter the real flashback encounter of Red John/Patrick Jane.* Jane explains everything, from RJ's operations all the way to how he escaped into Mexico with an old guy who had an uncanny resemblance to Bret Stiles. Or just the important stuff would be nice. At this point, anything would be nice.

- I know this probably will not happen, but who knows...maybe, just maybe Bruno Heller has a pigeon up his sleeve - 

There were a lot of theories in the pre-reveal, and even to post-reveal of Red John, that Brett Partridge was Red John. Since the supposed events of episode 8, Jane has been ambiguous and said he "killed the man who killed his wife and children," so we've never had conclusive evidence to bury the hatchet on that one.

I think one thing the trial will set straight is in confirming whether the Sherriff was or was not in fact, Red John. Note one thing said by Jane when is he being reviewed (in the promo): "I love a good story." He sounds like a man ready to hear a fiction tale. And remember, the grand jury's "story" is the recognised version of events. And we know the recognised version of events is that Jane killed Thomas McAllister, who is Red John, as this is what Agent Fischer says in episode 10. So why is Jane so sceptical?  

What I'd love is for the panellist to repeat the events of episode 8, and for Jane to start laughing, and with a broad grin say, "You think that's what happened?"

Question:  We first meet Kirkland back when Lisbon is investigating Volker, right?   We know why "homeland" was investigating Red John (personal vendetta), but did we ever figure out why Kirkland was warning Lisbon off Volker?