Has the next great world power yet to be formed?

I bet there were a bunch of Englishmen sitting around a pub in the 17th century debating who the next great world power would be. Little did they know that the next great power had yet to be formed. And yes international readers, I’m talking about the USA.

So is the next great civilization yet to be formed? Will it stay America? Or will Europe ever get their stuff together and join forces to become a world power. They can’t dominate they way the used to as separate entities. Or will the China theory come to fruition (The least likely in my opinion). A nation must have a strong people to be a strong nation. With more than half of china living like it’s the stone age, they are a few decades from being a real world influence. They may have money (yet to be confirmed) but that wont win them the cultural battle, which is how nations spread their influence in the information age.