There's only one way to know: call 407-WDW-DINE and ask!
You may have to settle for a very early or very late time if there are any left. If they say they're booked, keep calling every day, and if that doesn't work try again when you arrive at WDW.
We are leaving on 10-13 and I've called as recently as yesterday to change ADR's and I've been able to get things I wanted. I got CP about three weeks ago at a good time, so I bet you can do it.