Denny Cherry thinks Windows Server 2016 pricing changes won’t matter that much:
So looking at this chart we can see that any machine with less than 8 cores per socket and two sockets or less will cost you exactly the same as it will today. Also any machine with one socket and less than 16 cores will also cost the same as it costs today.
I’ll admit that I don’t know much about licensing, but rumblings at my company are that our server licensing costs are going to go up significantly. As always, check with one of the four people on Earth who understand Microsoft licensing.