Apple Newsroom yesterday:

With the 27.2 software updates released today, Siri AI — an
entirely new version of Siri that is profoundly more capable,
conversational, and personal — is expanding to more people around
the world, with availability now in the French, Japanese, Korean,
Portuguese, and Spanish languages. […]

Siri AI is currently unavailable in the EU in iOS, iPadOS, and
watchOS. Apple is working constructively with the EU in an attempt
to find a path forward.

Don’t hold your breath. (Or if you prefer, N’y comptez pas trop.)