Guide: Get Primed For Disenchantment Part Two With Our Part One Recap
Episode Nine:

Returning to Dreamland, King Zog and his men try to use the Eternity Pendant and Elfo’s blood to bring back the dead. However, it is revealed that Elfo is not a true elf, which leads to King Zog banning him from the kingdom. Bean and Luci go in search of their friend, without realizing that they are being followed by Odval and the King’s guard. As the trio are reunited, Elfo takes his friends to his home of Elfwood. Elfo discovers from his father that he is a half-elf, with his other heritage left unknown because Odval has begun his attack. The elves manage to hold off their attackers, but not before Elfo is fatally shot with an arrow. At the same time, King Zod finally admits why the elixir of life is so important, as he has been trying to bring back Bean’s mother. Left with a decision, Bean opts to use the elixir on her late mother, Dagmar, instead of her friend Elfo.
"There are also other characters that come and go (also owned by the Warner Bros. Discovery conglomerate media company)."
Huh. Is that just referring to other characters from the show itself, or is this implying that the new season is going to have cameos from other WBD IPs