Few things that could've been done better IMO.
1. Child voices for intro/1 little spark = OK. To me it could've signified the EPCOT Center we loved as children. Cut the child voices completely after that.
2. Replace the kites with a show-long projection on water screens like Fantasmic! to accompany the music. Would give context to the musical pieces that today's generation doesn't have a clue about.
3. Include at least 10 - 15 seconds of Reflections of Earth, excuse me, Disney World's most successful, award winning nighttime spectacular, ever.
4. Lose Whole New World
Edit. Totally rework the dreadful pre-show music and replace the child announcers.