Zaghawa people got sizable non-Nilotic-like and West African-like DNA. Three datasets showed an average of 9.4%, 16%, and 19.3%.
There seems to have been something stable going on since in all the datasets, the average of Natufian ancestry was proportionally the same as the Iberomarusian ancestry. Maybe we can look at a population that mixed with the ancient Zaghawa ancestors that were half Natufian and half Iberomarusian? With perhaps something East African there as well. We can make it more complicated and say the Iberomaurisan types came with minor West African ancestry from the Niger area and mixed with some kind of Natufian and East African mix and then later additionally mixed with what later would become the rest of the Saharan of a Nilo-Saharan (genetic) extraction. Either way, it seems some proportional Taforalt and Natufian existed, and I doubt they mixed without East African ancestry accompanying the "Natufian" (not assuming this is a Cushitic since it is most likely way older, although we probably got a considerable degree of DNA from that type of mix).
Hm, would be a drag to answer questions for the latter. Please don't ask me questions about it.