Originally Posted by mkoesel
We know BMW will be releasing the first member of the new engine family - the three cylinder B38 - soon. The I4 and I6 should be coming shortly thereafter.
This explains why people are doubting or fussing about the info. Its already been mentioned that there is a new I6 coming:
And historically the coupe has been released with a new engine.
The expectation has been the new 4 would have the new I6.