Hi Meg!
Thank you for bringing your question to the Disney Parks Moms Panel!
Wine and Dine Half Marathon weekend is my favorite! I think you guys will love it, too.
During the Post-Race party MOST of the
Epcot International Food and Wine Festival booths will be open. All of them should at least be open for the first hour of the party, before the park has it's normal closing hour at 9 p.m. Exact booths and details are still being finalized, but in the past most of them were available to runners and spectators during party hours.
IllumiNations: Reflections of Earth should also be taking place at 9:00 p.m. as it normally does. The Epcot calendar hasn't been published that far out yet, but that is the normal schedule for the fireworks display. I think you should be able to enjoy that during the party, too.
Please keep in mind that plans for Wine and Dine weekend are still in development and subject to change.
I hope this helps! Please let me know if you have any other questions.