Thanks very much, I can confirm that the Language Pack does indeed load and work with Factorio 2.0. Unfortunately, my Universal Translator is on the fritz (and not everything is translated, but that's to be expected).
You seem to be aware of this already, but I'll mention that some users will still prefer to run IR3 in 1.1, or are sceptical of the Patchset for other reasons, so it's good that you are keeping your 1.1 build up to date.