Taron is a thrill ride, but not an immersive ride.
The JP coaster will be much closer to taron then the new HP coaster.
Kluheim (where taron is located) is the best themed zone you can find in europe, including a table service restaurant where everything is themed. The decor, the table and chairs, the metal menu’s and even the food. So shinigami has a point. But I expect the new HP ride to be better themed then Taron on its own.