Here’s an idea for a third movie:

It’s called BEETLEJUICE BEETLEJUICE BEETLEJUICE and in it, a living woman willingly marries Beetlejuice, which leads him to cause chaos in the real world. Lydia, Astrid, and Wolf Jackson team up to stop him. Dolores returns because I don’t think she’s gone permanently and Beetlejuice gets some well-earned redemption. I wouldn’t ship him and Lydia like what Winona Ryder is suggesting, but after redeeming himself, he can move on to Heaven. Of course, Lydia’s parents and The Maitlands would probably freak out by seeing him there.