Board Thread:Movie discussion/@comment-11023504-20150706215407/@comment-17754282-20150811201651

I don't believe Isla Sorna was pillaged by InGen again after the first incident there as everything except Rexy appears to be "new stock" as it were, given how the Velocirpator, Triceratops, Parasaurolophus, Stegosaurus, Pachycepahlosaurus, Ankylosaurus and Gallimimus all look rather different from anything seen on Isla Sorna. Also breeding is not mentioned to be a problem in Jurassic World so I would imagine that the Dinosaurs of Isla Sorna would have been left alone for the most part.

Aside from the already mentioned bit about some poaching, anything else would be speculation.