BlogMickey.com is reporting that guests will be able to make their Fastpass+ selections for both Na'vi River Journey and Flight of Passage beginning March 24th. Fastpasses will be available for dates beginning May 27th and it is anticipated that the Animal Kingdom will introduce Fastpass+ tiers similar to those held in Disney's Hollywood Studios and Epcot.
Flight of Passage and Na'vi River Journey are expected to be in the same tier, forcing guests to select a single Fastpass for either attraction.
In addition, from May 27, 2017 – July 4, 2017, Pandora: The World of AVATAR will be open for nightly Evening Extra Magic Hours from 11:00 PM to 1:00 AM. No other attractions in the park are expected to be open.