The lightweight R8 V10’s aerodynamics you see in the pictures here have been modified slightly to include a front spoiler and rear fixed wing to increase downforce. A moderate power increase is also expected, but don’t think it will surpass the Lamborghini Gallardo LP560-4’s 552 hp. Something in the 530 hp range is a reasonable bump up from the V10’s 518 stock hp.
The lightweight R8 V10 will lose some weight by removing unnecessary luxuries like air conditioning and audio system, and will likely replace the leather seats with lighter sport seats. Extensive use of carbon fiber will also be likely. It will probably keep the signature quattro AWD system.