Hi Donna,
I hope you had an incredible first trip to WDW - I just know you did! Oh you sound like me - I'm always planning my next trip (or 2 or 3) while I'm there! December is an incredible month to visit - so many wonderful holiday events going on!
Great news -
IllumiNations: Reflections of Earth is indeed being held at Epcot during the month of December. You can check park hours, parade & fireworks schedules for all 4 of the theme parks online by clicking on the following links:
Magic Kingdom
Disney's Hollywood Studios
Disney's Animal Kingdom
Epcot
Select a month from the drop down list next to the
View Month tab. That will take you to that month's
calendar which will list park hours and Extra Magic Hours. Click on a specific day for parade & fireworks schedules. Be sure you pick up a Times Guide as you enter the parks to confirm as schedules are always subject to change without notice.
I'm happy to check any specific dates for you - just let me know. Also, please feel free to visit us as often as you'd like while you plan your December trip! After all, its the most wonderful time of the year :-)
Wishing you many magical holiday memories :-) Allison