Variety
http://variety.com/2013/film/news/colin-trevorrow-to-direct-jurassic-park-4-for-universal-spielberg-1200194421/
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According to Variety Safety Not Guaranteed director Colin Trevorrow has been tapped to helm the next installment in the dino-rific series. Universal Pictures and Steven Spielberg are ready to re-open the famous park, setting a June 13, 2014, release date for Jurassic Park 4 3D. Rick Jaffa and Amanda Silver penned the script, but plot details are being kept under wraps for now.
Look for more on this one soon!