I wonder if Pratt was wearing some kind of anti-eat-me stuff that kept the Raptors from finding him to be an irresistible morsel. A new version of the t-rex pee from the 3rd movie, if not actually t-rex pee? Could work, I guess.
All in all, it looks to have better acting and people behind it - it should be leagues better than the third movie, and at least on par with the second film. Acting and overall movie wise, I think it will actually be better than the plot of the first film. This time, it looks like they have a successful park and found smart ways to control the dinosaurs and keep people safe. It seems entirely successful until they started getting ballsy and creating hybrids.
In the first one, including in the book, all of it was rather hokey when you stop to think of it: they couldn't come up with dinosaur-proof enclosures (without electricity, which is a bad idea to rely upon) before they insisted on placing dinosaurs inside said enclosures? It looks like the only fail was a failure to anticipate the intelligence and creativity of a new hybrid monster - which is a less rehashed theme than the first story.
Effects may be questionable if they are leaning on all CGI, but it does seem they have a better executed plot, with potentially better acting, than previous incarnations. This should have been the follow up to the two books Crichton wrote - JP3 simply took the same tired idea and ran with it. At least this one is applying a fresh twist.
Judging by that trailer it looks f'ing terrible. It's same old genetic experiment gone wrong run for lives while the good scientist tries to save everyone rehash that we've seen a million times. Also, why does the CGI in this film look worse than the original from 20 years ago?
The original utilized the magic of puppetry with expensive real effects mixed with CGI.
Puppetry really is the answer for realistic looking CGI - you cannot rely on either solely alone to create a realistic impression, you need both working together.
But it ain't cheap, not remotely. And now, studios have simply accepted that expensive CGI budgets should still simply remain solely CGI budgets. :\