I have a slightly different perspective. I am looking for euro to break through or at least test the 1.30 level and for yen to get down into the 113 area for a few reasons. Comparing the two largest components of each of the three regions, I feel the future is bearish for the dollar - these components being 1) interest rate differentials and 2) trade balances.
Starting with the EUR/USD, many say the future rate hikes of the ECB are more or less factored in; however, I say it aint over till the fat lady sings. Thus, because Trichet is going to act on his hawkishness, the euro should gain some ground. On the dollar side, a very interesting situation exists. Many currency traders feel the Fed hasn't gone far enough, whereas, the bond traders feel it has gone too far - hence, the inverted yield curve. Going on the premise the Fed is not going to further invert yield curve, and fight the bond market. The dollar is going to suffer from not only a large trade deficit, but also a shrinking interest rate advantage.
Now with the JPY: interest rates are still quite accomodative, Hank Paulson is going to get China into shape, Thailand is going to cool down, and once again the Fed is done raising rates. Thus, the future yen strengthening may have nothing to do with Japan at all. If Paulson does his job with China, and Thailand settles down, a significant amount of speculative capital could flow into the Yen. Moreover, the US trade deficit is still going to be a huge factor in the equation.
Tying everything together, I believe that other than the state of these economies and the behavior of the central banks, the bond markets are going to be the big X factor. The treasury market has rallied significantly, and the interest rate advantage of the US is only going to get worse from here. Over time, that will sink into the minds of institutional investors globally, and the the excess of foreign capital bloating the bond market and thus the dollar will flow back throughout the rest of the world.
Let me know what you think.