I think that a Jaws/Amity theme could be good for the new waterpark (especially if they would bring the ride back) - and it could help to please some of the Jaws fans that were upset when the ride was removed, but I don't know whether a "shark attack" would be a good idea for a waterpark - is it a bit tasteless?
Some of us have joked about this before. And if the theme is okay for a theme park, I don't see how a water park would be any different.