I think that's one thing that would actually make sense. Maybe they're more open to the idea now that they're publicly supporting and advertising third party displays. (edit:spelling)
They've always supported third party displays, but this is the first time that I recall that they've included third party displays in an Apple event / presentation. To me, it's a pretty sure sign that an external 5K display from Apple isn't immediately forthcoming (else they would have announced it now and not mentioned the LG display).
Hackintoshing is incredibly easy now. You can grab a build off of reddit that works perfectly. The issues lie in when you use hardware that has never been in an Apple, for instance there's no Kaby Lake support until Apple releases something with KB.
The most common issues if you don't buy all Intel/Nvidia are the wifi and BT which can be alleviated by $10 usb receivers. Touch screen of course is a no go.
Clover, the latest Hackintosh installer is very easy.