I've written about the details about the 488 earlier.
With the new leaked photos we get to learn that the name will be Ferrari 488 Pista.
Photo Source
The 488 Pista will be Ferrari's most track focused model, with a V8 motorsport enginge making around 700 bhp. The engine is supposedly 10% lighter than the one in the original 488. With additional more boost and tweaks we can also expect a lot more torque than the 561 lb ft that the original 488 has. Other changes to the car is off course more carbonfibre parts and a stunning 20% efficiency improvement on the aerodynamics.