https://www.gamespot.com/articles/dark-souls-switch-release-date-confirmed-following/1100-6461151/

From Software has announced that the Nintendo Switch version of Dark Souls: Remastered will be available from October 19, 2019. The announcement was made on Twitter through the developer's official account. "Finally we hope you can look forward to playing Dark Souls wherever, whenever you wish," the message read.

The Switch version was originally schedule to launch alongside the PS4 and Xbox One versions of Dark Souls: Remastered, but publisher Bandai Namco announced that it would be delayed. Alongside the game's delay, the release Solaire of Astora Amiibo was also postponed.