According to jesmb.de, the E-Coupe will be receiving the new linear LEDs and the AMG sport will retain the boomerang ones. The first cars with these LEDs will debut in early December.
Yesterday I have found this in the Mercedes Spanish website

By the way, only for those who understand spanish, I have upload a new video about the E-Coupé: YouTube - berkonte's Channel
Especially as IMO MB has had the worst looking steering wheels of the big three for a few years now.