Jester David
Hero
Beyond that, they recently did a Know Your Lore on Cormyr, so I wouldn't be surprised if we were to visit the area in the near future, especially as it'a always been a popular region of the setting...
It's 8 months until the next unknown book drops. I doubt they're seeding too much into LYSK right now. They do 45 of those in a year, and only so many can expand on the adventures. Sometimes, what they talk about is related to other products and IP. Heck, they did Vecna just because he was featured on Critical Role...