Do you remeber how Patrick pretended to have a breakdown at the and of 4th season just to get close to the Red John? I think it's the same situation now. He is pretending that he is catching Red John who's on the list but acctualy, he had another list in his head. He know that Red John discliplines broke into his "office"(episode with the toothpick) and he is probably using that situation to mislead the Red John. Telling Theresa about the list i also part of his plan, otherwise he wouldn't risk with her especially because she can't keep secrets. If it came out that Bruno has forgot about the toothpick, i would be totally disapointed and the hole seria wouldn't have any sense. It is important for Bruno not to forget about any detail he presented as in the seria so far. And finally, don't be disappointed if Bruno told the wrong spoilers to the news and if Red John is nobody from the list.
Please comment about your thoughts and forgive me about English mistakes.
Greetings from the Croatia!