While speaking at Comic-Con Experience in Sao Paulo (the Brazilian version of Comic-Con) on Friday, Pixar Studios President Jim Morris revealed the new movie would be set mainly in the fictional Marine Biology Institute of California. It will introduce several new characters, including sea lions, an octopus, and a Beluga whale voiced by Ty Burrell.
The movie is said to take place a few months after the first one, with Dory, Nemo, and Marlin living the life of a happy (if unusual) family back at the reef where Nemo grew up. Ellen DeGeneres and Albert Brooks will both reprise their roles, but no word yet on who will voice Nemo. The plot gets set in motion when Dory spontaneously remembers her childhood, and being released into the ocean at a young age, so she sets off on a quest to California to find her parents.
Since early reports are in Portuguese, we don't know how much of the reported story is true, but it does gel with earlier reports that much of the story would take place at a marine center. And a more consciously humane marine center at that.
Back in August of last year, the New York Times reported Finding Dory had been sent back into development due to the the backlash against Seaworld after the documentary Blackfish. The movie originally ended in a "marine park," and had to be reworked in a way that didn't promote the captivity of its protagonists. Word is the new story involves a marine institute the fish are free to leave.
Hopefully the new info means we'll be seeing our first footage sometime soon!