This thread is becoming VERY interesting indeed!
What IF the leaked 1M engine(s) in the bellow photo was actually pulled from the 1M or 1M CSL... and green lighted for the new F88 M3. Seems to me that 332 Kw (451 PS) would fit nicely into BMW thinking for the "next" M3.
We already know the 135iS that was also featured in this screen shot - is now a reality. Ok, BMW decided to use the PPK1 so the 135iS has 320 Hp instead of 300 HP.
Now... what *IF* BMW were to detune that 451 PS engine and put the HP level somewhere between 135iS and M3, HP - and call it the new M2! I feel this is what will happen.
My old screen shot from almost two years ago...