Let me rephrase my initial questions.
One of these has to be true: (1) the proffer has not been taken; or (2) the state won't use it. If (1), why? What are they waiting for. As RSC42 said, there is no trial by ambush. The closer we get to trial and the more relevant the proffer is, the more likely CA asks for and gets a continuance.
And, why has CA's lawyer not asked for an order on his motion? Without that order, the state will have to release the proffer upon a public records request. And, the longer it goes on, the longer TD, WCTV, 1A Foundation can object.
My baseless assumption for all of this is that the state and DR have agreed to delay the formalization of the proffer. But I can't figure out why.