Hi Judy!
This sounds like a great family trip! It's so much fun to celebrate race weekends with the entire family at Disney World.
There will only be runDisney buses going back to the "host resorts" for Wine and Dine weekend. Here is the official word on this:
Half Marathon Transportation will begin departing from Host Resorts
at 7:00 p.m. To make it their corrals at the start by 9:30 p.m.,
participants must board buses no later than 8:00 p.m.
Transportation will be suspended from 9:00 – 10:00 p.m. due to road
closures and the race start. Shuttle service for Host Resorts will start
again at 10:00 p.m. and continue until 3:30 a.m. for the Finish Line
Party at Epcot®. After the race start, there will be shuttle service from the sports complex to Epcot® for spectators from 10:00 p.m. until 10:30 p.m.
Guests not staying at a Host Resort will need to provide their own
transportation and those driving personal vehicles will be required to
park at Epcot®. THERE WILL BE NO PARKING AT ESPN WIDE WORLD OF SPORTS COMPLEX OR DISNEY'S ANIMAL KINGDOM® THEME PARK ON RACE EVENING. For runners driving to Epcot® on race evening, the race shuttle from Epcot® to the sports complex will begin at 7:00 p.m. and end at 8:30 p.m. The parking fee at Epcot®
will be waived for runners and spectators arriving after 7:00 p.m. on
race evening. Please allow enough time to ensure you are parked at Epcot® no later than 8:00 p.m.
You can find a list of host resorts on the
travel page of the runDisney website. Just click on the link for the packages for Wine and Dine weekend.
I hope this helps! Please let me know if you have any other questions:)