It doesn’t necessarily need to tell some kind of wrap-up story, but if the series were to end its run, and then return one last time on the big screen.
Make it the end of The Simpsons.
You’d probably get fans from the past 30 years showing up at the theater just to say goodbye to the show that so many have grown up with.
Of course, with the series staring down the barrel of a 30th season, and the fact that this movie is still being described as “in development,” meaning it’s likely in the very early stages, there’s one thingFox could probably do to make the movie a massive hit.