I'm happy to report that Disney head Bob Iger has announced that Brad Bird is currently working on a story for The Incredibles 2! He also said that Pixar is developing a Cars 3, which isn't surprising. That franchise has made so much money for the studio that of course they're going to keep milking it.
The big surprise here is The Incredibles 2 and that Bird is involved with it, because I wasn't sure if that would ever happen. There are no other details on these projects or how far along they are, but back in 2007 Bird had this to say about it.
"But I think at Pixar, the bottom line is the story that you’re telling. And Pixar does not look at sequels as a financial plan. We feel we have a relation ship with the audience and that they believe in each movie we put out. We believe completely in every movie we put out. If I can come up with a story that is as good or better than that first film, then I’d love to return to that world, but it would have to be story first."
I do have to say, though, that I think making a Cars 3 is part of a financial plan. Those aren't the best movies that Pixar has made, but they do pull in the cash. In another past interview with Bird, he talked about his interest in returning the world of The Incredibles saying,
I really love those characters and if I can figure out a whole story to do I would do it. But one of the advantages that we had in the original Incredibles was that several of the characters had never really got to flex their muscles before. They were repressed, and it was about them discovering their own abilities. Any sequel to it, that particular thing — which is really a wonderful thing to be able to explore in a movie — that’s sort of gone. And so you have to find something that is equally interesting to do in a sequel.
I would not say no to [The Incredibles 2], because I really love that world and I love those characters. If I can figure out a complete thing — you know, I have a lot of ideas that I love — but the whole story, I haven’t got it yet.... if I can do that and make something that was to Incredibles what Toy Story 2 was to Toy Story, I would love to do it.
And now he is doing it! So that's awesome. I'm looking forward to seeing what he has planned.