That would be an interesting thing to see. It is even possible Pence would run against him in the primary.
But, no nepotism of that nature hasn’t been seen in forever. The closest I can remember is Robert Kennedy being appoint AG, but at least in that case he had qualifications.
Both of the Bush’s had family better equipped to serve in government but knew it was simply not appropriate. This is why the current president (and his kids) calling Washington any thing a swamp quite hypocritical.