Its something I'd be willing to look at with sufficient support in the community.
Copying new language
files to non-English directories would be fairly simple. However, getting around the issue David brought up would be more complicated. As you say, I could look at a find up to the "=>". However, the find algorithm currently does not know what file it is looking at, so some issues could arise elsewhere.
Making any notice outside of AutoMOD is very unlikely. AutoMOD currently doesn't change any phpBB code, and I'd like to keep it that way