In a recent interview, Chris Long, Executive Producer and Director on The Mentalist, talked about the Show's future:
The Mentalist may or may not be picked up for its seventh season by CBS. Long suggested that Warner Bros production chieftain Peter Roth (repping the studio that produces and distributes the show) and CBS CEO Leslie Moonves were probably “huddled right now” to make a deal – or not. And if not, Long thinks the Simon Baker starrer very well could go elsewhere, with TNT being a possible contender. “The show does have 50 million viewers around the world so, well, we’ll see,”Source: hollywoodreporter.com
Thanks to @imsonotMelville for the heads up.