Most wanna-be Empires or quasi empires don't succeed at all. Turkey will be a force with which to reckon but they're unlikely to go beyond a regional bubble. Same applies to Indonesia -- and a couple of others here and there.

Most Empires of real power, OTOH, do have worldwide sway but each has generally had a shorter life than its predecessors. Compression at work facilitated by the ever increasing ease and speed of communication. That doesn't bode well for China -- or India. We were never going to be on top for long, we aren't mean enough -- unless we're badly provoked (and many in the world have by now figured out pretty much where that line is...).