https://www.pcgamer.com/dark-souls-remastered-is-half-price-for-owners-of-the-original-pc-game-after-all/

In January, despite some confusion, Bandai Namco assured us existing owners of the original Dark Souls would not receive money off its incoming Remastered edition. Now, the publisher has confirmed that they will. 

Billed as a "loyalty discount", owners of Dark Souls: Prepare to Die Edition can pick up Dark Souls: Remastered at half-price when it hits Steam on May 25, 2018.