Well, I'm not sure when in October you will be visiting, but you can always hope for a "Soft" opening. WDW almost always has unscheduled trial runs for its new attractions. They often consist of Cast Members standing outside the queue and simply waving people in. Pass through Tomorrowland whenever it's convenient and keep your fingers crossed.
I was really hoping to be able to see CoP on our upcoming trip. With the opening of Stitch delayed, I'm more optimistic about my chances of seeing it. I can wait for Stitch another year, but it's been a while since we've been at WDW when CoP was open.