This is expected, all nations that forego manufacturing will have to suffer. Time for West is up now. However, they still have much more to their advantage if they see it.
For example high-tech, bio-science and IT is the new wave of economics. West enjoys economic freedom and intellectual rights that none of the BRICs can guarantee.
I mean, how easy is it in India or China to get a patent and actually make a good use of it?
Plus the political stability, law-enforcement and justice systems are all better in the west than in any BRICs.
Most of the world's top academic institutes are also in the west.
They can make a turnaround if they want, but yeah it wont be like the 1960s and 70s prosperity. Asia is here to grow.