Considering the the sequel to Wreck-It Ralph was rumored by the cast long before it was officially announced by Disney, it’s certainly possible that’s happened here as well.
No sequels to Zootopia have ever been officially announced by Disney, but recently, Tom “Tiny” Lister, who had a small role in the original film, claimed that not one, but two sequels were being planned by the studio.
The original film made over $1 billion at the global box office and also won the Academy Award for Best Animated Feature.
It certainly wouldn’t be shocking to learn this was true.