Hi Amanda!
Welcome back to the Disney Parks Moms Panel.
I am so excited to try out the brand new
Disney Skyliner on my next trip to Walt Disney World (I missed the opening by 8 days on my last trip!).
Take a look at this article from the Disney Parks Blog for some official details. As it is still very new I cannot give you my first-hand experience of the timings but I have researched many of the unofficial blogs online written by Guests who have been lucky enough to try them out. You are correct that you will have to transfer at Disney's Caribbean Beach Resort station when travelling from Disney's Pop Century to Epcot's International Gateway.
Here is a useful map of the Skyliner route. Please know that all timings are approximate, and we need to allow extra waiting time and loading time. Disney's Pop Century Resort to Disney's Caribbean Resort is approximately 6 minutes; and Disney's Caribbean Resort to
Epcot is approximately 15 minutes. The Disney Skyliners look very impressive from the ground, and I really cannot wait to experience the bird's eye view while travelling around. Enjoy the flight!
Please come back and visit us if you have any further questions. We will be happy to help you plan your magical vacation.
Sue