TechPowerUp spotted some listings in Europe. It looks like these disks will hit retail shelves in December 2018. There will be 1TB, 2TB and 4TB versions, with prices of 140EUR, 270EUR, and 540EUR, respectively (incl. 19% VAT).
Performance goes up to 550/520 MB per second for sequential read/write, and apparently these SSDs will feature 96,000 IOPS read and 89,000 IOPS write. There will be at least three variants: 1 TB (MZ-76Q1T0BW), 2 TB (MZ-76Q2T0BW) and 4 TB (MZ-76Q4T0BW), with prices of 117.50 euros, 225,96 euros and 451,93 euros (VAT excluded) according to those online retailers. Even with taxes included 19% would make 140, 270 and 540 euros), these are cheaper prices that the ones we can find on the Evo family (160, 380 and 850 euros at those storage capacities), for example.