Board Thread:Suggestions forum/@comment-26061849-20160406213538/@comment-26347028-20160407134514

Also, Quenya being selectable is because it is in the actual base code for Minecraft, as I remember. Or something like that; you'd need to have a Resource Pack, or we'd have pestered Mevans for Sindarin long ago.

On a side note, go and change the text file yourself; and then present it to the mod team. I changed a large amount of the Quenya one, and have recently presented one about the Avari. You could easily edit some of the phrases to be in Black Speech and send that in.