Who knows what other Middle Paleolithic genomes might be in the works? My guess is that once all is said and done, the tree of Homo will fill up with "red" admixture edges, and those who argued for a single Homo lineage evolving over hundreds of thousands of years, with gene flow between regional populations, will have the upper hand.
An interesting finding is that the introgressing Neandertal (N.I.) was related to the Mezmaiskaya sample from the Caucasus rather than to the Vindija sample from Croatia or the new Altai Neandertal. It'd be great to have the genome of a bona fide "progressive" Near Eastern Neandertal.
UPDATE I (Dec. 19):
Reading the 249 pages of supplementary information is likely to reveal a lot of gems of new information.In SI 13 we see that:
We detect likely West Eurasian gene flow into the ancestors of Yoruba West Africans within the last ten thousand years, which indirectly contributed a small amount of Neandertal ancestry to Yoruba.and:
These results mean that we have not identified any sub-Saharan African sample that we are confident has no evidence of back-to-Africa migration. Our best candidate at present is the Dinka but it is possible that with a phased genome or large sample sizes we would detect evidence of non-African ancestry in this population as well.Nature (2013) doi:10.1038/nature12886
The complete genome sequence of a Neanderthal from the Altai Mountains
Kay Prüfer et al.
We present a high-quality genome sequence of a Neanderthal woman from Siberia. We show that her parents were related at the level of half-siblings and that mating among close relatives was common among her recent ancestors. We also sequenced the genome of a Neanderthal from the Caucasus to low coverage. An analysis of the relationships and population history of available archaic genomes and 25 present-day human genomes shows that several gene flow events occurred among Neanderthals, Denisovans and early modern humans, possibly including gene flow into Denisovans from an unknown archaic group. Thus, interbreeding, albeit of low magnitude, occurred among many hominin groups in the Late Pleistocene. In addition, the high-quality Neanderthal genome allows us to establish a definitive list of substitutions that became fixed in modern humans after their separation from the ancestors of Neanderthals and Denisovans.