No need to worry, the film still has 7 months of pre-production to fix that. Puppets are being used in this film, just as much, if not more than the original. All of this has been confirmed by the Director.
It is definitely for the Kong ride. Jurassic Park isn't being rebranded as Jurassic World at this time.
That's kind of good, I think the arch should still Say Jurassic Park. As that is the original name for the first three movies. But, I'm sure the JP area will get something for the 2015 season along side the movie.
I think this is what is going on the current JP arch. And more than likely the reason that construction is going on by the JP area is for JW. Who knows though, it could be for the King Kong ride.
*Image from Jurassic World teaser trailer*