Although the first film was very successful, there were financial problems that haunted the making of World War Z 2. Paramount was reportedly worried that the second film would be too expensive to make. Fincher at the time budgeted for World War Z 2 to be over $200 million. Filming will also take place in five different countries, along with an additional six weeks on location in the United States and Georgia. The budget seems too big for the studio.

And in 2019, Paramount finally decided to part ways with Fincher due to a dispute over the film's budget. Paramount may be reluctant to pay $200 million considering that World War Z 2 will be R-rated so only a handful of people will get to see it. In addition, this film will also be banned in China due to their strict regulations that cannot feature zombies in a film.

If Paramount can find another director who can make a World War Z sequel on a smaller budget, then the film might be able to get the green light, and eventually hit theaters. Pitt is reportedly very pleased with the script for the second film, and it's only a matter of time before Paramount appoints a new director to work on this film. Let's just wait for further information geeks.