If you'd care to read the carefully worded comments on Beauty & The Beast, Nikita, 90210, Hart Of Dixie, Supernatural and more CW shows from CW Chief Mark Pedowitz today during the CW's Television Critics Association meeting there are several handy places online.
Let me summarize for anyone not willing to do the Googling.
"We love all our shows. We think they're all doing well in one way or another, particularly considering something or other unique about each show. We'd like to have them all be renewed."
That shows that Pedowitz has completed the full TV Executive Public Speaking Course, which includes rules like, never commit to anything, and never speak negatively about any show in public, ever.
Those attempting to read the tea leaves on the future of their favorite shows from his remarks are engaged in delusional futility, but have at it as you will.