Source: http://www.irishexaminer.com/breakingne ... 87477.htmlQ. Obviously the end of the film is somewhat open for a sequel. Would you like to go back to this world ever?
Pete Docter: After five years… we do have ideas but I kind of feel like it’s nice to have it finished and I’m looking forward to looking at new things. For me personally part of the fun is discovering these new worlds and creating them. Nothing existed and now you have this reality you believe in. That’s the joy of watching it as well as working on it.
Q. Would you be happy with another Pixar filmmaker taking on a sequel?
Pete Docter: You’d want to make sure it was a worthy idea and there was a reason for doing it. At this point I think the movie’s done its one of a kind. You never know – you always get into trouble when you have blanket statements like that.
Source: http://www.ew.com/article/2016/01/14/os ... ete-docter“We'll see if anything turns up,” he says regarding the possibility of an Inside Out 2. “To me it's not as simple as we liked it, so lets make another one. What happens is you design these characters not so much looks-wise but as they are as character and people for a story. So we’ll explore it and see what happens.”
Source: http://www.theguardian.com/film/2016/fe ... -animation“We’ve talked about a sequel but we haven’t come up with anything yet that I feel would merit it,” he says, calmly.
Source: http://www.timeout.com.hk/film/features ... osaur.htmlQ: Inside Out did very well, are there any plans for Inside Out 2?
Jim Morris: Not right now. Pete [Docter] and Jonas [Rivera], the producer, have a new and equally weird idea that they are working on – so we will play through on that for a while! But I wouldn’t rule it out. The nice thing about working for Disney is that they don’t really dictate. I mean, I’m sure they would love to have another Inside Out, but it would be a long way off, if at all.
I do get the role of Joy is much, much bigger than Disgust, Fear, or Anger, but still.... 5 million v. 100, 000 is a massive difference. You'd think it would've been 5 million v. $500-700,000 or something. I mean, I would take $100,000 for a background voice role 
...but that's peanuts for people in show business, I know, and they deserve to be paid fairly in comparison to the other actors, not to mention the huge profit the film will likely make.
It makes completely sense to portray the sequel from Riley`s point of view as a teenager (for compelling reasons)! But frankly, perhaps they`ve should`ve done it in the first place with the predecessor.
