Market analysts are predicting that the slight oversupply of NAND flash for eMMC/UFS and SSD storage seen in the first few months of 2018 will continue through to the middle of the year. Due to a delay in production expansion, this could result in higher prices in the last half of 2018.
https://www.notebookcheck.net/Oversupply-means-NAND-flash-prices-will-drop-further-says-TrendForce.299300.0.html