Unlikely. The first sample is from around 1400 BCE. The last king of the Hyksos dynasty was expelled 1550 BCE. Their samples go to 400 CE. They did conclude a

Unlikely. The first sample is from around 1400 BCE. The last king of the Hyksos dynasty was expelled 1550 BCE. Their samples go to 400 CE. They did conclude a continuity of the population for the whole time. If these were really foreigners the must have came in at a steady stream for over 1300 years, with no local intermixing.