I think that this is good fodder for a conversation over a few drinks in a pub, but in terms of trading my answer would have to be 'tough to predict'. There is a US election (which might yet be won by Obama simply because the Republicans fail to provide a credible candidate), oil prices are very unpredictable, the Eurozone could suffer a meltdown or sort its problems out - if the last couple of years have taught us anything, it is that international politics, and in particular where they relate to economies/currency values etc., are very volatile. After all many experts, including whole governments, failed to predict the global recession.
There is no inherent strength in USD at the moment, to speak of, it is simply not weakening as badly as the Euro, GBP is pretty flaky, so there are many issues for these currencies to sort out before they strengthen against anything. Couple that with an economic picture in Japan that is complex to say the least (rebuilding costs still open ended, nuclear industry in turmoil, export market very unpredictable, car industry under pressure globally etc.) and you won't find many experts happy to predict much for next year.
I would not bet against a strong move in either direction. The markets are so sensitive to news and innuendo, these days, that we may well get both!
I agree with TWHM (in particular his first paragraph!).
(And please note, the Obama point was not made as either a pro- or anti-Obama one, but simply a wider point that he might almost win by default, which is not good for anyone)