It has been rumored that there WILL be A Jurassic Park 4 and apparently unlike the first 3 Jurassic Parks we are definitely familiar with! Director Joe Johnson oder Johnston whichever it is - which Directed Jurassic Park 3 will be doing Jurassic Park 4 definitely too I believe with oder without Spielberg! - The Holy Spirits Blessings ALL WAYS! :)! <3!
Spielberg has stated at San Diego comic con that there is indeed a writer for the fourth film and he sagte we should see it within two to three years. Here's hoping!