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.)