I guess the closest we might be getting anytime soon then is the digital euro. Which is supposed to end its preparation phase soon, and, in spite of being government issued, promises to be private (not like ccs are remotely private anyway, so nothing lost at least).

As always there's some risk of it getting changed to allow tracking later down the line, but if done correctly it could still be a big improvement over the current situation for EU citizens. If it's successful, maybe other governments will look into similar programs.

I feel like ideally the digital euro project would work with GNU Taler since the goals seem to align, with the main difference being that the digital euro would be government backed. I don't have high hopes since governments always fuck this up somehow, but I guess in the best timeline the EU is that champion (since using the same technology even with a different currency would give some trust into the concept, so it could help with finding early adopters - likely outside of the EU since I'd imagine in that scenario the digital euro would just be preferred here)