Hello Betzabe! Welcome back to the Disney Parks Moms Panel.
During one particularly fool-hardy Walt Disney World Resort visit, I tried to visit all 4 Theme Parks and ride as many attractions as possible in one day.
While I did not include any of the nighttime shows in my challenge, I did take advantage
Extra Magic Hours in the morning and evening as a benefit for staying at a Walt Disney World Resort Hotel.
Your plan sounds reasonable, however transportation will play a vital role in your ability to arrive at Epcot in time to experience Soarin'. After the
Rivers of Light Nighttime Experience at Disney's Animal Kingdom Theme Park concludes, there will be a quick rush for the exits for many Guests. You will need to go directly to the
bus depot transportation to board a shuttle to Epcot before the rush.
Alternatively, you may wish to look into the
Express Transportation Option that transports from within Disney's Animal Kingdom Theme Park to within Epcot, past the ticket gate and security clearance. It is available at a cost of $19 for a single day or $29 for up to 7 days beginning on the date of purchase. Be sure to inquire at the Express Transportation kiosk near Kilimanjaro Safaris before you experience Rivers of Light to ensure that the timing and Epcot shuttle will benefit your plans.
While your plan is doable and Guests are accommodated for attractions up to Theme Park closing, there is no guarantee that something may happen that spoils said plans(ride closures, late buses, etc.).
Happy Hopping!
~Todd