Just because there is a scene in the next episode with McAllister still alive and running through a window with a bullet in him, does not anywhere indicate that he is Red John whatsoever. All it indicates is that he is still alive and the deaths at PJ's house were probably faked to some extent. 

I somehow don’t think the producers are going to reveal who Red John is in the promo, even if it's only a glimpse.

Quick question guys


How come they never explained the gunshot in Patricks's house?

OMG. In the promo Red John (we assume so) says "The game is over and I have won."...this doesn't sound like any of the list of 7, certainly not Bertram, but it does sound like a certain someone who died in Season 2 and had a thing for Lisbon...

Sam Bosco!

http://www.youtube.com/watch?v=XYOMRi2SxDA

I'm not saying it's definitely him, but it sounds very similar and if it was, what a shocking and amazing conclusion that would be. Heller did say someone from S2 would be returning...

John (!) Musashi- lawyer of visualize. I know he is not on the list but Bertram just doesn't fit as the crafty and manipulatory Red John to me. In the episode 'his thoughts were red thoughts' ep. 16 season 4, Musashi comes into the interrogation room were Bret Stiles reacts quite weird. He shrugs and crunches like he is afraid of his lawyer and than is apologetic about the situation. It looks like the lawyer is in charge not Stiles. Also visualize should be somehow connected to Red John.

The guy whom Jane killed as red john is the real red john, the same voice in the promo! I think, listen to it, maybe i'm mistaken but could be!

Red John from the Promo

http://imgur.com/UgcBoKl

PROMO
http://www.youtube.com/watch?v=qQVYz7_8qeE