Well the E92 M3 (present generation 3-series) is going to get a light weight V8 similar to the V10 in the M5/M6, but it won't feel the same. It will be much lighter and higher revving at the expense of torque.
Why would you want a heavier weaker engine? Porsche doesn't use V8s in the 911 either. Smaller, higher revving or turbo engines are usually what you will find in cars that handle well.