Doesn't seem likely: https://standardebooks.org/contribute/accepted-ebooks

> Types of eBooks we don't accept

> ...

> * Non-English-language books. Translations to English are, of course, OK.

I don't see any rationale for it on the mailing list, only a message from Alex Cabal two years ago stating "not at the moment": https://groups.google.com/d/msg/standardebooks/JdVpCm3ckGg/i...

Alex explicitly does not want the "Standard Ebooks" name or mailing list used to coordinate similar projects elsewhere (including other primarily English-language nations), due to copyright issues: https://groups.google.com/d/msg/standardebooks/qRDTb-hHMxk/z...

Nor is Alex aware of any other similar projects: https://groups.google.com/d/msg/standardebooks/ikg07cqkABY/Q...

It looks like they’ve decided not to publish any non-English books [1]. It’s a pity – I much prefer reading books in their original language if I’m able to understand it, and I was even considering contributing some German books to their collection. Maybe it would complicate the publishing process a bit though since different languages have different practices for things like punctuation.

[1]: https://standardebooks.org/contribute/accepted-ebooks