In the final moments of 6x08 there is a woman and blonde child walking as Jane is running away from McAllister's dead body. This is his wife and child. Look up Angela Ruskin-Jane on Mentalistwikia and you'll see she makes an appearance in this episode in Jane's Hallucination.
Key word: Hallucination. Maybe this means Jane was delusional and just Hallucinating the whole episode and he didn't really kill the real Red John, he just believed he did due to psychosis. Why else would they have him hallucinate?
Also Heller said that Red John would be revealed in season 7. I heard both Robin Tunney and Simon Baker have signed in for another season so maybe Heller got his wish and is extending the real Red John reveal for when he originally had it planned.
