Hi, Jennifer!
My 8-year-old daughter is also a big fan of Pocahontas (and her raccoon buddy, Meeko)!
Pocahontas is regularly available to meet guests hourly from 9:15 AM to 7:15 PM at Disney's Animal Kingdom Theme Park. Her greeting schedule is currently updated through Saturday, December 26th on the Walt Disney World website. If you click on any dates past this one on the online calendar, a "no times available" message will pop up.
Anna and Elsa, the lovely princesses of Arendelle, are meeting guests at the Norway Pavilion at Epcot. As you might imagine, the Royal sisters from
Frozen are very popular! They meet from 11:00 AM to 6:50 PM (with breaks scheduled in between). Their greeting times are currently posted online through Saturday, January 4th, 2014. My family and I were lucky enough to be able to meet both Anna and Elsa in early November several weeks before the film opened. They were so much fun! Be sure to have your twins ask the princesses about Sven (the reindeer) and Olaf (the snowman).
I recommend checking back online in another week or two to confirm if the schedules for January and February 2014 have been posted. In the meantime, you can click on the links I provided above for more details on these two magical Disney Character meet-and-greet opportunities.
I hope this helps! Please send more questions to us here on the Moms Panel as you continue planning your trip.
Wishing you a magical vacation!