I have a lot of personal theories how my country can best cope with future geopolitical adjustments. If I were in charge, the first thing I would do would be to close most foreign military bases. We can have the strongest military in the world and have them largely based in the US. I think the US Navy continues to be a good investment, but I would cut back a small amount on intel and other military branches.
And that won't change any time soon. The Euro is a decent currency but we're too disjoint to back something supposed to be a reserve currency, and China's Yuan is too much controlled by the government (and exchange limited) to be viable.