From the global strategy team at Morgan Stanley:
USD: Uptrend Still in Place. Bullish.
We think the current USD fall will run out of steam. The catalysts for a turnaround back to a USD rally will be either strong US data confirming the need for tighter monetary policy in the US this year or other central banks globally fighting back against their own currency strength. In the short term FX rates can be influenced by central bank action but longer term it’s about the growth outlook relative to the rest of the world.