Is it just because it's still so early or are we not getting the feature in the EU for the time being?
My guess is that the whole feature isn't available yet. It's not just the EU.
I don't even see the standard predictive code in Settings > Components either.
Just checked Xcode 26 Beta on Sequoia, the Predictive Code Completion Model is there.
I've tried various changes to Region / Language / Time Zone but that hasn't changed from "This feature is currently not available in your region".
However, I just noticed that under Apple Intelligence, "Apple intelligence is not available when starting your Mac from an external volume". I don't have a spare Mac, so external is the only way right now.
Welcome to day one WWDC. What you see on the glossy packaging isn't always what is in the downloadable box.
The solution I'm now looking at is freeing up at least 100GB from my Mac and use APFS to re-partition the live drive - yes you can do this, one of the benefits of APFS.