All,
I've started work on a project to port the current-generation Intel WiFi drivers from Linux to OS X. Right now it's very, very early in a process that looks to be a very, very long one. I have a kext that identifies compatible hardware and loads and digests the matching firmware, but it doesn't yet do important things like, say, connect to a network.
Still, it's a start, and if anybody has a recent Intel WiFi card and wants to give it a spin and confirm whether it recognized the card successfully, there's a build with instructions here:
https://github.com/ammulder/AppleIntelWiFiMVM/releases/
The list of compatible hardware is here (it includes the Broadwell and Skylake NUC WiFi cards):
https://github.com/ammulder/AppleIntelWiFiMVM/