Aside from liturgical matters, what is the official language of the Catholic Church now? The Church needs an official language unless it is to go the way of the Orthodox. While the Catholic Church could have, in theory, more than one ‘official’ language for its documents, that will not work out over time.
If the official language is not Latin, then what? I don’t think it would wind up being any of the Romance languages; rather it would end up being English.
What will the next edition of Heinrich Denzinger’s “Compendium of Creeds, Definitions, and Declarations on Matters of Faith and Morals” look like?