Back to Jurassic Park..
In a sense, I can really only imagine two ride concepts for right now (until the sequels come out) that would be a great fit.
1.) An indoor/outdoor covered motorbike coaster themed to the raptor hunt sequence from the first film.
In a strange sense, this would act as an family coaster in the same way Tron does; and it wouldn't require a large track like how Tron is. You can simply theme the bikes based on designs of the Triumph Scramblers (the motorbike used in the film itself) and have it controlled with the ride being a mostly screen-based attraction (with maybe even some Raptor AA's along the vicinity of the track). I could see it in a sense, where the Raptor Encounters are and with the Camp Jurassic area engulfed into the attraction.
Or hell, keep CJ but make it a part of the indoor environment and having it be an unique way to offer shaded kids play with the coaster interacting around the camp itself. I think there is a lot of potential that could come out of it, as it'd be a great addition/ to the park and a great replacement to the flyers in a sense. Plus, you could relocate the raptor puppets and keep them in the indoor environment for indoor M&G's (along with maybe the T-Rex)
2.) Trackless Gyrosphere attraction
Essentially, make it a peaceful family attraction that doesn't replace anything (and can be located on the side closest to Hogsmeade) that is educational of prehistoric life and a people filler. In the terms of how they'd do the Gyrosphere, they could explain simply that there may be some windows that open up to make sure that it's not enclosing you completely; almost like a car in a sense.
Besides that, it'd just be an attraction that people of all ages could go on; almost like an Aquatopia if you will. Just, expanded in layout and having animatronic's within the attraction.
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I don't think it's being relocated to the third gate. IOA has always been the home to Jurassic Park; and there are ways they can make it not only more immersive, but with having more experiences for everyone to enjoy in many ways.