Grunion Contact Form, not still i18n friendly

Although the efforts of other users (see this thread), the plugin Grunion Contact Form isn’t still i18n friendly, so that we can’t localize it for the five languages we use in our multilingual site (latin included). It’s a pity, because the former plugin we used, Contact Form 7 is localizable, but it doesn’t already work in our site.

Could the authors of Grunion Contact Form rebuild it in order to do it localizable, please? Thank you in advance, chaps.