The trailer for Beetlejuice 2 reveals a new ghost in the Neitherworld waiting room, which may connect back to a character’s death from the original movie. Among the most memorable aspects of the 1988 films afterlife worldbuilding was the various ghosts in Beetlejuices Neitherworld waiting room, who highlighted an array of shocking and unexpected deaths. These ghosts include people who died from shark attacks, choking on chicken bones, being burned alive, being bitten by rattlesnakes, and being sawed in half, and Beetlejuice 2‘s story is expanding on the waiting room with new ghosts and causes of death.
https://screenrant.com/beetlejuice-2-magician-ghost-assistant-death-explain/