But aren't we already in a situation that's much worse than that? i.e. imagine someone time traveling from 82 and it's hard to believe that they wouldn't be shocked by how old-fashioned so much of what is played on the radio sounds. Sure there was REO Speedwagon etc back then, but they didn't have the level of dominance that Indie has now achieved.
Compare 67-87 to 88-06, it's frightening. Perhaps a better question than 'what will be the next big thing?' is 'what was the LAST big thing?'
it's not that bad. plenty of great stuff is still happening, you just have to look for it. i think you should all cheer up.