Spielberg is confirmed as producing the fourth movie, although there's no word yet as to whether he'll handle directing duties, or whether Joe Johnston (Captain America: The First Avenger) will remain at the helm following 2001's Jurassic Park III. The latest draft of the script for Jurassic Park IV has been written by Rick Jaffa & Amanda Silver (Rise of the Planet of the Apes, Dawn of the Planet of the Apes), having previously passed through the hands of William Monahan (The Departed, Sin City: A Dame to Kill For) and Mark Protosevich (Thor, Oldboy).
Before the fourth movie hits screens, we'll be able to return to Jurassic Park on the big screen this year as Universal celebrates the 20th anniversary of the dino-franchise with a special 3D re-release of the groundbreaking 1993 original, which is due to open in North America on April 5th.