For an incredibly simplistic view...
Yes, Europe, China, and India will be stronger. India stronger, yes, but not at superpower status. If they don't acheive it, Europe and China will be at least pretty darned close to superpower status.
At the risk of incurring wrath here, the U.S. will still be a very major if not the major power of the world. We still have a big plus in technological, economic, and military matters, and even without the New American Century stuff, I would still see it as a priority to make sure we're still on top and strong. I would hope America will attempt to build up the standard of living and domestic matters much more and try to be more in contact and peace with the rest of the world, though-and go back to something of still sticking somewhat to ourselves ala the 19th-early 20th century.
Technology will still go at an explosive rate, though I suspect someone travelling from this century to the next will still recognize many things.
Africa and most poorer nations, regions, and areas will hopefully stabilize, but still remain insignificant on world and economic matters, sadly. Life will probably be short and sad in proportion to the rest of the world in that time, no matter how much it improves from here.
Oh, and I will have made some sort of bid for world dominance. Overall, you can see how much an optimist I am.
