Seriously. It's an indoor/outdoor themed coaster. It will kind of like Gringotts, but hopefully better. Gringotts is like the mummy which is like another indoor coaster which is like another indoor coaster. Only so many ride types out there.
There can be different ride types with an indoor coaster, and not just one.
Just because one type exists, it doesn't mean that it has to be the only one type.