When the writers and producers were asked for an update on the script for Jurassic Park IV – this was their response.

It’s really hard to keep these things going when there’s an expectation and a desire by the public and the audience to keep certain franchises going. As filmmakers, we often sit there going, ‘Okay. We have to answer the question, ‘Why do another one?” If you can’t answer that question, you shouldn’t be doing it. It’s tough. We’re trying to come up with a story that makes sense and isn’t going to disappoint people and is, hopefully, going to get people excited and reinvigorate the franchise. We’ve got to start with a script and the story.