I doubt it will be offered for the reasons stated above. Same deal on the M3 compared to the regular E9x 3ers: no fog lights (standard on the regular 3) and no ACC (optional on regular 3).
As for the instrument cluster, it's probably cost-saving since the M3 has the same ACC display on its instrument cluster. In fact I think the E39 M5 had a bunch of LEDs that pertained to options that were planned to be offered but got scrapped; they were even more noticeable and thus mysterious to owners.
'16 Cayman GT4 (delivery pics
Gone but not forgotten:
'11.75 M3 E92 Le Mans | Black Nov w/ Alum | 6MT (owned 5/2011 - 11/2015)