It'll probably be both, like the first film.
Because I'm a big whiny dino nerd, I'm kind of miffed about how inaccurate some of the creatures are, (as mentioned, the overly large mosasaurs, and the depiction of a pterosaur carrying off an adult) but I might go see the movie anyway. I hope there's a good amount of variety and we get at least some scientifically accurate ones. I don't normally get sucked in by graphics, but dang, some of the visuals look pretty sweet. If nothing else, I can at least get a kick out of laughing at some of the cheesier things, like the raptor army and aforementioned pterosaur.
But I'm still questioning the plot. The new superdino doesn't really look all that much more spectacular than real dinos. I don't really picture it attracting more guests than regular dinos. Also, I'm wondering what the purpose was of making superdino smart. It's supposed to be a theme park attraction, it looks cool. Unless they plan on training it to do tricks, making it super intelligent seems like extra work and a stupid idea.