The Incredibles 2 will be released in 2019, and Pixar says that it currently doesn’t have any sequels planned beyond that. Instead, it will focus on new IPs.
In an interview with EW, Pixar president Jim Morris said that the studio plans to create more original content instead of developing sequels. He said that "everything after Toy Story and The Incredibles is an original right now."
Other sequels in the works include Cars 3, which will be released in June 2017, and Toy Story 4, which will be released in 2018.
Pixar isn’t averse to releasing more sequels. Morris said that it would be good to revisit the world of WALL-E, but added that there are no plans to return to the franchise just yet. The Incredibles 2 is still three years off and anything could change. As Morris noted, “anything is possible,”