DislikedThoughts on how the on U.S. Retail Sales Data could affect current trend?Ignored
That said, markets are sensitive to inflation related data at the moment due to the Fed's positioning. The market is looking for anything that would help them divine the outcome of the next FOMC meetings. Check out Yellen's recent testimony; they are allegedly going with a data driven approach, but I think it's already written in stone.
Anything negative may cause a spike in the EUR/USD. The magnitude and duration of such a spike is unknown because the market has been a bit unpredictable as far as short-term swings are concerned, but it will eventually resume the current long term down trend. Resistance for any spikes would be the previous support levels.
I think it's also important to note that capital unwinding/rotations have already begun; big players (nations, large financial institutions and banks) have been moving their money; tomorrow's data will ultimately not reverse that.