But that only works for so long. They NEED to get some new stories
They've been trying. Raya and the Last Dragon, Luca, Strange World, Elemental, Turning Red, Encanto, Lightyear, and Wish just to name a few. They all underperformed or bombed at the box office. Then they come out with Inside Out 2, and it absolutely crushes it. So what's the lesson to be learned here?
It's not Disney's fault, or any studios fault for that matter. The audience has changed over the past decade. They do not want to be challenged anymore with new stories. They want the safe and familiar. I forgot where I read this, but basically in this day and age, if you approach a studio with an idea for a movie, if it's not based on an existing IP, or a Horror movie, you get told to fuck off. Existing IPs are the only worthy bets for a potential return on a big blockbuster, and Horror movies are usually foolproof because they never require a big budget, and the target audience are teenagers who are too retarded to know what a good movie is.
You're bringing up a fair point though. Eventually the entertainment industry as a whole will need to start providing new stories, but it won't be anytime soon. It'll take a couple more generations before Gen X and Millenials are mostly dead, and you've a couple new generations who don't know or care about Star Wars, Toy Story, Frozen 5, or any other tired IP on life support. But what the next slate of entertainment looks like, or the technology it's based on, remains to be seen. But I will say that for anyone over the age of 25, get comfortable with these franchises, cause they're not going away in our lifetimes.