Demand Curve to the left
Changes in prices usually causes a shift in the demand curve, but it is also true that expectation about future prices will also shift the demand curve. When consumers expects price of good X to decrease in the future, they will tend to decrease their spending on the product. They will consume less of product X so that they can wait for the prices to decrease, leading to a decrease in demand. The decrease in demand will the shift the demand curve to the left.