Jurassic World director Colin Trevorrow released the photo above from the set of the film to celebrate the first day of Autumn. This may give fans of the original movie a nostalgic moment.
This is the same sign from Steven Spielberg’s Jurassic Park that points the way to one of the East Docks, which was hit over when Dennis Nedry (Wayne Knight) was trying to escape from Isla Nublar. I don't know if there's any hidden meaning behind this photo, or if it is just a fun tease that we should take at face value. Either way, the movie comes out on June 12th, 2015.