Hi,
cool! I’ll try to work on this as soon as possible, but as I’m very busy at the moment and as I don’t know how much work is necessary to make things compatible, I can’t give an estimate.
For now, I suggest that you use the approach with Extension. By the way: To use a different language file for a table, you’ll just have to add an extra parameter to the Shortcode:
[table id=123 datatables_locale="de_DE" /]
where that “de_DE” is the desired language (and for which a lang-de_DE.json file has to exist).
Regards,
Tobias