Rock is-in a sense-making a comeback. However, its not in the form most of us would like it to. Its coming back into popularity with Fallout Boy and Hawthorne Heights, and backs like that. Really crappy rock that involves little talent and no good live shows.
But blues singers of 1920s onward must have thought the same thing when british and garage banRAB started popping up later on. Its like the evolution of music. Its inevitable.
And I still stick with Symphonic Metal/Rock as the best music EVER. Though I'm getting into more and more Prog.