Whoa, I hope they don't move the date up! We're there the week before and this is our first trip with the Water Park Option! It's our major planned highlight of the trip, mainly to see and do something different. If TL was closed any earlier than Oct 4th, I think we might reconsider our trip!
Come to think of this though, it seems like an AWFULLY weird time to refurb TL. It's still hot out in WDW in October, and they can easily work on it over the "winter" months...
Dan