https://www.gamespot.com/articles/dark-souls-trilogy-is-not-coming-to-europe/1100-6461328/

There seems to have been some confusion with the announcement of the Dark Souls Trilogy. The assumption was that the trilogy would land in all regions--but as it turns out, that's wrong. This collection of action-RPGs will only release in the US and Asia.

A spokesperson for publisher Bandai Namco confirmed the news in a statement: "To clarify, the Dark Souls Trilogy release date announcement yesterday (August 21st) was a US and Asia announcement only, and was not a Gamescom announcement in Europe. Dark Souls fans in Europe can still get their fix on October 19th--with the release of Dark Souls: Remastered for the Nintendo Switch console."