Hello, Melissa!
You're heading to Walt Disney World during the Previews of the
New Fantasyland Grand Opening! How exciting!
According to Disney Parks Blog, Guests will be able to enjoy previews of Under the Sea - Journey of The Little Mermaid, Be Our Guest Restaurant, Enchanted Tales with Belle, Ariel's Grotto, Gaston's Tavern and Bonjour! Village Gifts. You
should be excited! :-)
Previews often enable Guests to enjoy certain venues during more limited times, so keep your eyes and ears open for what's available as you visit Magic Kingdom. According to the blog, reservations for dining at Be Our Guest Restaurant will be able to be booked in late August; call Disney Dining at (407) WDW-DINE from time to time in August in order to secure a reservation, should you wish to do so.
Don't forget to sign up for Disney Parks Blog to be delivered to your inbox, too, so that you don't miss one update on this most exciting expansion in Magic Kingdom!
Have a great trip! Send more questions as you think of them, too!