"Who will be replacing the States?" I don't understand why there needs to be a replacement? I feel as though the United States isn't declining but information

"Who will be replacing the States?" I don't understand why there needs to be a replacement? I feel as though the United States isn't declining but information is spreading equalizing the equation globally. Sure there are political issues that cause back and forth, but I feel we are moving more towards a global culture with aligned goals faster than ever before.