My mom and I were at WDW at the beginning of this past June, in October, and just this week. COP was closed all three times. On Monday we took the Keys to the Kingdom tour (which I highly recommend), and I asked our guide about it. She (Robin) didn't know a definite answer, but seemed to think COP's days might be numbered. At this point it is still open at busier times, but the future doesn't look too hopeful. We love this attraction and miss it. I hope it is open for you in June.