The RS5 will soon be with us.

It is known that the RS5 is faster on the Ring with standard Sport suspension then with optional DRC (standard in some markets).
And not because it saves about 8kgs weight.

It is also known that the DRC on B7 RS4 has had its issues, and many have fitted aftermarket suspension. My question is - will the RS5 standard sport suspension fit the B7 RS4.

And on that theme, what other evolved bits from the RS5 will enhance the RS4?