EDIT
The man who crafted the languages of Essos for HBO’s Game of Thrones is heading to Arrakis. Dothraki and Valyrian language builder David J. Peterson is doing language work for Denis Villeneuve’s highly-anticipated Dune.
https://gizmodo.com/game-of-thrones-lan ... 1833921344
https://artoflanguageinvention.com/