If Jurassic World reaches the (admittedly lofty) expectations of 125 million and holds well against Inside Out and Ted 2 in the coming weeks (culminating in around a billion worldwide gross, like Sean said), I'd expect some sort of reaction. Can't say it'll be huge - but I could see some fast tracked rebranding, perhaps some upgrades to the River Adventure they can tie into the film - new dinos, shinier theming befitting the new aesthetic - something they can push as a rebrand, ala Spider-Man.
As far as a brand new attraction... the only spot left is the Trike plot. They could fit in something small to moderate there, depending on how they allocate space. If it could be done cheaply (re: the buggy idea I mentioned, or a small coaster of some sort), then I could see it getting shoved in there.