Exactly nothing new, if you wanted ANY aspect ratio you could get that on a PC with custom resolution, you didnt even have to fit into standards like 21:9 (or whatever)... input lag is already very low, only thing i see as a improvement thats FreeSync Premium Pro but knowing Samsung thats also going to be riddled with bugs and incompatibilities... Im using tv's a as monitors since 2010. but im ditching the concept and will split those two once again, OLED for movies and proper Gsync monitor for gaming.

Its gonna take some years before we see true 12bit HDR sources, but well done for bringing it to the masses on displays. I'm interested to see how good these displays are.