Ride system, queue, mechanics, ride layout, giftshop, tech, sequence, structure of show scenes. As I said, it would be like calling HMH a new ride. It has new theming, but the rooms and scenes are the same and the progression hasn't changed.
If covering up a practical effect or show scene and replacing it with a projections screen makes it a whole new ride, then Mansion's new WDW finale will give us a BRAND NEW ATTRACTION. YAY. Luckily we also got that new Alice in Wonderland ride a few years back and Hyperspace Mountain magically changes to a new attraction whenever the layover occurs.
Oh my gosh, totally forgot that Indy now counts as a brand new ride thanks to them not wanting to fix the doors.
On one hand, we lost a lot of old rides. But on the plus side, I just discovered that we have so many new attractions that have been created in the past 10-15 years.
This is so silly. Words have meaning.
Mission Breakout is an Overlay - call it an Overlay. It's not a Clone.
The Haunted Mansion is The Haunted Mansion. Revising a scene or two is an update to The Haunted Mansion, not a new attraction.
Changing
all the scenes in a ride, along with the exterior and the name, makes it a new ride even if it's not a new facility. Which is why calling Mission Breakout "The Tower of Terror" would not be correct anymore. What you experience now is no longer The Tower of Terror.
When a ride is built in a new location that is for all intents and purposes a copy of an existing ride, it is a Clone. TRON at Magic Kingdom is a Clone.
When a ride is built in a new location and makes significant changes from the original design but shares a name, it's a new version of that ride. The Haunted Mansion at WDW is a version of The Haunted Mansion. They share many elements, but WDW's is not a direct clone of DL's.
Phantom Manor shares many elements with The Haunted Mansion, and its design is based of the original at DL, but it features multiple new scenes, revised scenes, a new exterior, new music, a new script, and a new name. It is plainly part of The Haunted Mansion family, and Disneyland Paris' equivalent of The Haunted Mansion, but it is not actually itself The Haunted Mansion. It is Phantom Manor, which is a different, new ride.
That said, just because a Tomato is a Fruit doesn't mean it belongs in a Fruit Salad. Building Phantom Manor in a park or resort that already has its own version of The Haunted Mansion would be a bad idea.
Dinosaur! is not a clone of The Indiana Jones Adventure. It borrows elements like the ride vehicle, and shares a
similar layout - it is not actually identical - and
could theoretically be adapted into a
version of an Indiana Jones ride (as has been officially proposed), but given the structural realities of the Dinosaur! facility it is not likely to ever be converted into an actual direct
clone of Disneyland's Indiana Jones Adventure. Until that day comes, Dinosaur is its own, new ride. It might be strange to build Dinosaur! in a park that already featured a version of Disney's Indiana Jones ride, but that's never been a conversation anyway, so.