All I have heard is "during busier seasons"... whatever that means. No CM I have talked to has any specific times or dates. Hopefully someone else has more info.
I received an email saying the same thing. CoP will open by mid October, and since we're going 10/23-10/29, that's good news for us.No matter what time you go, theres bound to be something closed that you want to see. For us. its BTMMR.