There are some free-form text descriptions specified in the GBFS (example : cross_street field in station_information.json). I think it would be great to have the possibility to describe these fields in various languages. So far, I think the only way to do so would be to publish/import different sets of GBFS files for different languages (which is heavy, and adds a risk of conflict between the sets of files.)
Did you consider this possibility already ? Thanks,
Edouard