The Wild Naked Chicken Chalupa isn't much different from the regular Naked Chicken Chalupa--it just substitutes new "Spicy Wild" sauce in place of the Avocado Ranch. Other than that, it's the same crispy chicken shell, lettuce, tomatoes, and cheddar cheese.
The Wild Naked Chicken Chalupa has been spotted testing in Lawrence, KS as well as Kansas City, MO. In Kansas City, it's being offered concurrently with the regular Naked Chicken Chalupa, which is being called the "Mild Chicken Chalupa" there.
Photo via Taco Bell.