Does the Simian Flu Exist?

But in War of the Planet of the Apes, the simian flu flares up again, mutating to quietly spread through the last surviving people. Immunity against the original plague is no protection against the latest form of the virus, which causes a degenerative disease that leaves humans mute and animalistic.

Could Planet of the apes happen?

According to Ray Hammond, any transition would take a minimum of 300 million years to take place and that's if apes gained human-level intelligence. Also, while a disease could spread worldwide, it's unlikely to be an extinction-level event.

What's next for Planet of the apes?

A new movie in the Planet of the Apes series is now in development, but there are many unknown variables as to what the next movie will be about. In December 2019, The Hollywood Reporter reported that a new Planet of the Apes movie will arrive from 20th Century Fox's new owners, Disney.