There's a long history of characters passing down their mantle to a successor, or in some cases, maybe a void is left by the loss of a hero and filled by a new one. Here are a very select few of the most modern versions of those legacies.
Robin (Damien Wayne) and Superboy (Jon White/Kent)
Wolverine (Laura Kinney)
Ms Marvel (Kamala Khan)
Iron Man/Heart (Tori Williams)
BONUS! CHARACTER REDESIGN!
An OG legacy character in dire need of a 21st century make over, each iteration of The Phantom is a descendant of the previous. Give him or her a new look worthy of today's heroes.
New and improved for 1996!
Sooo, the first Phantom, twenty generations ago wore the same purple spandex and a couple of 45s? Besides, this character was created in the '30s, you don't think if he'd been made today he'd be sporting some leather or armor or something?