q.

huey: after fenton took over gyros place as the scientist / inventor for mcduck enterprises, huey becomes fentons intern, and later on even his apprentice, taking care of the lab when gizmoduck is needed spontaneously. he does regular check ups on boyd :]

dewey: goes to take on the most after della, pure adrenaline seeker. he goes out to adventure, rarely ever staying home for longer than a few days, often times taking webby with him. keeps getting into the most wild situations and always baffles everyone bc no one knows how he just seems to miraculously survive every life threatening situation he's in, not even him lol

louie: somehow manages to take over mcduck enterprises and does a surprisingly good job at it?? no one ever sees him doing anything, but for some reason he's still the most successful businessman world wide (he's basically exactly who mark beaks THINKS he is.) he has a lot of respect for scrooge and his legacy, even if he doesn't openly admit that. (he grew sideburns in scrooges honour, trust)