[LDSM]

Not an M specific question.

Will the future of the 3/4 series line grow further apart, in regards to styling, handling, etc

Or will they always keep the 4 series close to the 3.

I assume the 3/4 will grow further apart in the future, but I wonder what this will mean for the M3 nameplate, once the M4 becomes further refined away from a sedan chassis.
Since the 4 series is now a dedicated coupe they can break away from the confines of a sedan chassis and I imagine the performance of the m4 will exceed what the m3 is capable of.