Reports have been warning about possible NAND memory price hikes ever since late 2018, but the actual increases could happen this year. DigiTimes reports that a minor power failure problem has set back NAND memory production by 3 days at Samsung's Hwaseong facility last week and the effect of this supply shortage could ripple throughout 2020.
https://www.notebookcheck.net/Report-warns-NAND-memory-prices-could-increase-40-leading-to-more-expensive-M-2-SSDs-in-2020.449338.0.html