Colin Trevorrow has signed on to direct the massive sequel Jurassic Park IV for Universal Pictures. Rick Jaffa and Amanda Silver are writing the script,Frank Marshall is producing alongside Patrick Crowley, with original Jurassic Park director Steven Spielberg serving as an executive producer. The sequel will also be shot in 3D.The original Jurassic Park will be re-released in theaters with an all new 3D conversion on April 5.Jurassic Park IV comes to theaters June 13th, 2014.