Yes, but just keep in mind that we do regard lions and tigers as separate species, even though they can produce offspring. Likewise with horses and donkeys, as another example.
As I have maintained throughout, my position is not that sexual pairings of Neanderthal and Cro Magnon never took place, or even that they could not result in progeny, but rather that my judgment at this point in time is that the weight of the evidence overwhelmingly points against Neanderthal/Cro Magnon admixture as any type of consequential phenomenon, and that indeed the weight of the evidence suggests that the two were fully distinct species.
Sorry - one more question. Are there currently different hominid species alive today or have all been blended into current "humans"?