From Quo magazine (in Spanish). Translated some sentences here:
J.L. Arsuaga, co-Director of Atapuerca archaeological site: These are only some some results and we will have to wait. It is a contribution in some humans of just some 2%, what would not be really relevant.
C. Lalueza Fox, member of the research team of El Sidrón cave: This year we will see published the Thousand Genomes' Project, that aims to sequence a thousand human genomes, and will be interesting to see if the percentage of Neanderthal genes is kept, in which frequency, in which populations.
Jordi Agustí, member of the research team of Dmanisi site: It does not fundamentally invalidates what was believed so far: that they were different or almost different species.
E. Baquedano, member of the research team of Pinilla del Valle site: We will have to admit that Humans and Neanderthals belong to a single species even if they are distinct subspecies.
In the same magazine but a separate interview, anthropologist Erik Trinkaus, defends his theory on admixture in Europe some 40,000 years ago only and is disdainful of the use of aDNA and the comparison of a "pathetic" sample of just 3 Neanderthal individuals with just "five modern humans" (sic, actually it's five modern human populations comprising 12 individuals). He refers us to his 2007 anatomical paper.