GBPUSD stays above the upward trend line on 4-hour chart, and remains in uptrend from 1.6051, the fall from 1.6524 would possibly be consolidation of the uptrend. As long as the trend line support holds, the uptrend could be expected to continue, and the target would be at 1.6700 area. Only a clear break below the trend line support could signal completion of the uptrend.