According to such commentators or midrashim as say that Noah had slaves that joined him on the ark, what happened to them? That is: We hear a lot in the immediately succeeding chapters of Genesis (and of course in the rest of Tanach) about Noah's own descendants; did the slaves have any descendants? Did they remain slaves of Noah's descendants? Were any freed (or did any escape slavery)? Did any became separate peoples? Which?
 e.g., Haamek Davar to Genesis 7:1