My suggestion for a follow up to DmD would be to start right where we left off, telling the rest of the story of Dee climbing up the celebrity ladder. Dee has to hide the fact that she is married, or even that she has a boyfriend, for professional reasons, like the Asian idols do. + she's married to her dad in the only corner of the world where it's allowed, so probably the rest of the world frowns upon that kind of things.
It becomes a female protag game, the devs finally empower Dee with the chance to take her own decisions, and she will have to manage her fame and career, deciding between staying faithful to F with some occasional swinging together, or get corrupted by influent men tying to get in her pants, teasing her with big career moves.
Or by reporters threatening to reveal her private life. Or simply just trying to abuse her naivity.
In the long run she could fall into drugs, witness something she shouldn't have, get kidnapped, get filmed with F secretly and blackmailed, have an affair with the president, know the aliens are real... anything that happened to Marilyn but in current times and without the tragic death.
And to relax between plot points : sex parties with celebrity friends she knows + new ones she will meet.
Also the more powerful she gets, the more she tries to give job opportunities in the Entertainment industry to her friends (Elena and others) because she's nice. Her friends in turn get into their own stories. Maybe Dee doesn't get into drugs and get kidnapped because she ows money, maybe it's Elena and Dee has to save her and bring cash, but drug dealers change their mind and don't want money. What else could she give ?
Anyways, might not be the best ideas but everything the dev's suggested sounded to me like "Let's make a slightly to incredibly worst version of the game, depending on your vote".