Prefacing this with my disbelief that radio play is an accurate way to judge anything, but I would not be surprised to see some of the bands I mentioned on the radio in 20 years (The Killers have won 7 Grammys, BTW, also not a great way to judge and have sold 1/4 the number of albums that KISS has, despite KISS having 28 years on them and being the industry leader).
The bands that we are comparing are generally relegated to classic rock stations, while their predecessors are still played on oldies stations and their successors get air time on 90's rock / alternative stations. I can see no reason why in 20 years that millennial rock (or whatever they will call it) wouldn't follow the trend.
So, if by the good graces of God you are still around, I hope you have a small head and don't live in my neighborhood.