[LordGronk]

I would say Coptic and Latin are not exactly a 1 to 1 comparison, primarily because today coptic is attached to a specific ethnic identity and the attempts at community revival that come with that. Of course one might argue that there are Latin revival groups too but equating organised families and expat communities that function like the Copts (or similar groups like the Mandaeans) with, say, internet organised neo-pagans that have little continuity or an organisation like the Catholic Church that solely uses Latin for official documents and discourages its use is, at best, a comparison that lacks any sort of diachronic subtlety.