As "leaked" from ChipHell, purportedly soon(TM):
(though given the existence of an actual retail packaging, probable; they're usually designed and cut last)
Original post found here: https://www.chiphell.com/thread-2164455-1-1.html
Will be interesting to see it tested, assuming anyone capable picks it up.. Best case scenario, Gamers Nexus or Hardware Unboxed will, and they're both useless. Or if we're really lucky, maybe JayzzzztwoCentz(!11) will, he has that revolutionary method of fan testing; you know, the one without any numbers, just a hankerchief (EK Vardar fans, video's still up; he even goes on to proclaim them the best ever! Talk about dedication to science). Amazing stuff.
Either way, while the fin arrangement's a nice idea, they're still too spread apart for my liking, though i grant that the majority of users will benefit from that design as they aim for sub-1500 revolutions. Just.. not the way to get that Performance Crown, now is it.
My cynical self also has a thing or two to say about the different fan casings, but.. there'll be time enough for that
(Noctua needs to get their stuff in gear pronto; first the new Assassin, now this. That new NHD15 is about two years late; i honestly wonder if they got too big for their own good, goes together with slow, or if they're having production issues; volume coming to mind mostly)