The Disney Parks Blog confirmed that Rivers of Light will debut on April 22, 2016 at Disney's Animal Kingdom. Per the blog:
The show, set on Discovery River in the Asia section of the park, will depict an ancient lantern festival guided by two storytellers who call forth four animal Spirit Guides: an Asian Tiger, Tropical Turtle, African Elephant and Great Horned Owl. These Spirit Guides return at different points during the show to lead the audience through their journey through the Rivers of Light.
The video below offers a glimpse at the upcoming show.
In addition to the sneak preview, The Disney Parks Blog will be hosting a live chat on March 8, 2016 at 1:15 PM with creative directors of the project Michael Jung and Mark Renfrow. More information on the live chat can be found here.