Jurassic Park IV is an upcoming 2013 Science Fiction Action Adventure Sequel Thriller film written by Michael Crichton and directed by Joe Johnson. It is the fourth instalment in the
famous Jurassic Park franchise and is scheduled for a February 18th 2013 release in theaters everywhere.

It stars Sam Neill, Laura Dern, Isabel Lucas, C. Thomas Howell, James Early Jones, Eddie Murphy, Martin Lawrence, Mila Kunis, Katie Cassidy, Monica Keena, Cam Gigandet, Vaughn Wilson, Chris O'Donnell, Nick Swardson and Nicky Whelan.
It is produced by Prehistoric Park producers Karen Kelly and Dennis McNicholas as well as story drafted out by Prehistoric Park writer Chris Henchy whom's overral film idea draft was the reason the film entered production.
The film spent nine years in planning and as of 2011 got the go ahead from the newly forged Universal subbordinate company Universal Orlando as well as Steven Spielberg's Amblin Entertainment.
The legendary Steven Spielberg who helmed the directors chair of the first two instalments of the series and served as an executive producer for the third returns on again as an executive producer for the fourth instalment alongside Jurassic Park III actor William H. Macy.
The fourth instalment like the fourth Scream Instalment and fifth Final Destination Instalment is intended as the starter of a new series of the already existing franchise.
Full Screenplay writer of the film Michael Crichton along with Steven himself, Karen Kelly and Dennis McNicholas intend the fourth film to be the starter of a new Jurassic Park trilogy (much like Scream 4 is the starter of a new Scream trilogy).
The film apart from the many high done sets for the Universal Orlando Resort was filmed in Kern River, California and El Mirage Dry Lake two locations which served as filming locations for the third film as the Jurassic Park Island's overral location was filmed at these places.
To coincide with the theatrical release of the film a LEGO Video game of the four current Jurassic Park films was released bearing the tenative title LEGO Jurassic Park.

Source: http://fanon.wikia.com/wiki/Jurassic_Park_IV