Hi there, Samantha!
You will absolutely want to take advantage of
Extra Magic Hours at Epcot for certain popular attractions, like Soarin'.
The
list of attractions open during evening Extra Magic Hours is as follows:
The American Adventure in the American Pavilion
Gran Fiesta Tour Starring The Three Caballeros in the Mexico Pavilion
Captain EO starring Michael Jackson
Journey Into Imagination With Figment
Living with the Land
Maelstrom in the Norway Pavilion
Mission: SPACE
Soarin'
Spaceship Earth
Test Track
With so many attractions open, and fewer people in the Park, your wait is guaranteed to be very manageable. I hesitate to make a prediction about exactly how long your wait will, but I ca assure you that it will definitely be more pleasant than a wait during the day.
Have a wonderful time!
See you later, celebrator,
-Deborah B.