Hello, Margaret!
Not to worry! You'll probably be able to get a sneak peek at some of the New Fantasyland Expansion during your upcoming stay at Walt Disney World!
The official New Fantasyland Grand Opening has been announced on
DisneyParksBlog; keep checking back for more exciting information as it becomes available as updates are sure to be posted frequently. Previews of attractions often occur prior to these Grand Openings so
that Imagineers and Cast Members alike can adjust some minor aspects of
an attraction to better accommodate Guests. Most likely, you'll be there
during some really exciting events, although none of this will be
scheduled "in stone."
Take a look at one of my favorite unofficial Disney sites, allears.net, for additional information and reviews as well. Keep checking back to allears.net, as well as
Disney Parks Blog for updates prior to your departure. As with any construction, dates can move up if the work has been completed sooner than expected, so any of these dates are subject to change.
No matter what, you're sure to see a bit of magic when you travel the Magic Kingdom this fall! Enjoy!
Send more questions as you think of them; we love to help!