Who knows, it might be a great place to install the new* Riddler's Revenge!
*Actually about 50 years old and relocated from Six Flags America, America's most recently closed amusement park.
It would also be unfortunate because Kings Island was already lacking a little on the other end in terms of things that non-riders can do. If the chain wants to keep it as strictly a family park, why aren't they installing more family attractions that the whole family (including grandparents) can enjoy at once? The KI & MV RR, the Grand Carousel, KMAA, and Boo Blasters are pretty much the only four attractions at the park that I would feel good taking my grandparents on. Add the five shows (with some that don't even run most of the normal season) and that's only nine things for older/non-rider family members to do. That's a market Kings Island could play into more that they aren't.
There's also the argument that the park needs 1-2 more super thrilling, stand-out coasters in its lineup beyond the imperceivable Vortex replacement. Families can come to the park all they'd like, but when those kids get to the age where they are looking for a place to go, they won't find as high intensity coasters as they'd like at Kings Island.