Originally Posted by Ixal
Wizards has revealed a new subclass and the new and improved Dragonborn stats today (The book with them will release in november I think)
Will Larian use them? Who knows. But just so that you know that they are out there.
Dragonborn:
https://dndcelebration.com/downloads/preview-1.pdf

Drakewarden Ranger
https://dndcelebration.com/downloads/preview-2.pdf

(There are also new dragon types, but I doubt Larian will add them unless they have some kind of deal with wizards to promote new stuff. But by the time BG3 releases it won't be new anymore)

I'm pretty sure those are things that tie into the world of Krynn in dragonlance since that is the next up coming content.