I, too, will be surprised if the show is renewed. Letting it degenerate into an ordinary primetime drama leaves us as audience on the outside, instead of inviting us in to learn, to connect, and to see what the characters see. I understand the value and necessity of character development to any show that wants to stay alive, but the fact of the matter is that last season's character development -- as driven by the science!! -- was handled so much more deftly than it has been lately. I still remember how enthralled I was when Cal pieced together Ria's past from a lack of movement in certain muscles around her nose. How original! How fascinating! By contrast, Cal grabbing his old "friend's" broken fingers to get him to tell the truth is pathetically crude and overblown.
Someone in the ranks of the Powers That Be for this show has apparently forgotten that the science is the show's raison d'etre. The relationships between the characters ARE important, yes -- but they wouldn't be near each other to HAVE relationships in the first place if it weren't for the science. Deception detection was -- and still should be -- what the show is about! It's certainly why I, for one, started watching in the first place; from the couple of discussions like this one on this message board alone, it seems like I'm not alone in that.
I originally loved Numb3rs for the same reasons as LTM: It was unique, intelligent, and a fascinatingly well-executed mixture of educational and entertaining. It gave me a new window on the world. I didn't have to understand game theory or pursuit curves or fluid dynamics to be invited in by the presence of the math itself -- something that, analagous to LTM's body language and communication, is ubiquitous in life and the physical world. And (at least last season) I didn't have to be an expert in deception detection to be invited in by the science on LTM. I could learn from it -- about myself, and about others. But now the show doesn't make me think, doesn't give me anything new, doesn't fascinate or enthrall; it's just another drama. (Incidentally, Numb3rs went the same way, although it lasted 4 seasons instead of a mere 1.)
I can't fathom why the science (which, I'll re-re-re-emphasize, is the reason the show exists in the first place!) has vanished, and I certainly can't believe how quickly it's done so. And... I don't know about you, or anyone else, but it kind of makes me feel like the people behind Lie To Me Lied To Us...