Denisovans in Spain? Human origins may now be characterizsed as "It's Complicated"

Firstly, the National Geographic link.

They tested the Neanderthal bones from Spain and the result said Denisovan, the still apparently poorly understood third strand of modern human genetics, along with homo sapiens sapieins and the cold-adopted Neanderthals of Eurasia.

Maybe the Denisovans were the original Eurasian population and Neanderthals replaced them in their range?

Maybe any hypothesis can float a while in the current void of knowledge.