http://www.cbs.com/shows/the_mentalist/news/1001580/

Did you see this crap?

"One of my favorite things about this episode was the pigeon gag in the
chapel. The pigeon gag is a plot device that could only work on The
Mentalist - Playful, unexpected, a little preposterous, but eminently
logical."

It is really hard to move on and accept this ending, but
I believe that Bruno planed all this.

This is not a theory, is more like an observation and I
wanted to see if people agree with me.

Let’s back up a little, remember the season 4 finale when
Patrick fakes a break down to get RJ to approach him. It took months of preparation
and a lot of work to Patrick have a chance to get closer to RJ, and it didn’t
work. Using this logic, to catch RJ, Patrick would have to have a big plan to
trick and misdirect RJ. Maybe Patrick already knows who RJ is or maybe not, but
he needs a big plan to fool RJ.

Like most people, I would be satisfied with McAllister being RJ, but he should
have found him, tricked and outsmarted RJ, that’s the whole style of the
series. Almost is every episode Patrick solves crimes having elaborated plans,
always tricks people into his traps, I don’t see how the catch of the most important
criminal in the series could be different 

One more observation. Since the beginning of the series
we now that RJ’s followers admire him and his work, they would do everything
that RJ wanted, and when I look at the Blake association, it doesn’t look like
RJ’s thing, they are just corrupt cops very organised. I know that RJ could be
the boss and as we know that the Blake association works in an anonymous way,
they wouldn’t know about their leader and that his is RJ. I don’t know, for me
this doesn’t fit. I do think that when at the end of season 2 RJ say the tiger
tiger poem, he was warning Patrick about the Blake association 

Please give me your thoughts on this, and let’s hope for
the best, hope this wonderful show doesn’t become a disappointment like lost or
prison break

Personally, I was very upset and displeased with the Red John reveal.  You spent how many years and hours devoted to the Mentalist, only to have this crappy closure about Red John.  I can not for the life of me even imagine that Bruno Heller can honestly say,     "Yep, that sums it up perfectly".  He wrote so well and perfectly the entire series with many hooks and plot twists that this ending seems so hurried, simple, weak and without any flair; not Bruno like.
I admit that I wanted to see the devil himself walk through the door and be this amazing character (Red John) that is the biggest bad you could ever imagine, but alas it didnt happen.  We the fans deserve better than a 10 minute Jane vs Red John ending.  I enjoy reading and watching good shows with quality writing and when crap like this happens it is infact a huge letdown.  My only hope is that this is all a farce and that there is more to come.  Sadly, I know in reality that this is the worst ending we all could have imagined.

So my theory is that Jane Patrick is going to become a marathon runner from chasing JR throughout the whole season...he's always running.
In the last episode after he'd just killed JR, he is seen running in his suit and there are rumors going around that in the next episode it will begin the same except he will not be in his suit but in running clothes.
The whole series is about to change from solving crimes to a more quirky, spunky feel where Jane finally is free.

After watching Episode 8,  i think that even If Red John was revealed as Justin bieber it would still be a better closure than what they did, i mean seriously a one armed monkey could have written and directed a better episode.