I think people need to get realistic expectations though. There is maybe no Hexadin Warlock option coming and it does not exist in Players Handbook.
Look, I already know at this point that I'm probably going to ditch the game midway through like I did DOS2 just due to me being... not a fan of the theme-parky and sterile nature of the game world and the 'balls-to-the-wall from the word go' action movie narrative that is present in EA. That being said, if I can at the very least play as an Oathbreaker Paladin hanging with my Jack Skellingtons I'll enjoy that and it will have been worth the cost of admission.