Par4QC imo, no one will ever dominate the PGA again.
I think there will still be dominant players, but they only come along every generation or so. They will also have to be lucky enough to have 1 or 2 rivals as good as they are to compete against. Jones had Walter Hagen and Gene Sarazen. Hogan had Snead and Nelson. Jack had Arnold, then Miller, Weiskopf, Trevino, and Watson. Tiger had Phil, among others. Unfortunately right now, we seem to be in a lull. But I think another super star will come along....it's just a question of "who" and "how long" we'll have to wait to see him emerge.