They're not really rock, but Snarky Puppy is one of the most innovative groups probably to have ever come along, and they're only about 10 years old. I think though that there's plenty of amazing bands out there, but there isn't the mainstream media exposure to get them the coverage they need (even MTV was running Rush). Kids nowadays are way more open-minded thanks to the availability of music on YouTube and Spotify, so while rock may not be the hottest thing, it's still around. And back to the main question in terms of endearing fans, Bruce Springsteen is probably gonna keep touring until he dies. So there's that.