Realistically, the main arcs of the story are completed.Twilight understands friendship now and ascended to a archmage Alicorn Princess™.Rainbow Dash is a Wonderbolt.Rarity has her fashion boutiques in Manehattan and Canterlot.The other three, well, they never had extremely ambitious goals to begin with. AJ will live and die on that farm, Fluttershy tamed Discord, and Pinkie Pie exists.The CMC have their cutie marks.While I like the return of the slice of life episodes, you can only do so much with that with a show like this. I'd be perfectly happy if the movie is the endpiece of a pretty fulfilling 7+ year run of a show that for all intents and purposes wasn't planned beyond 2 seasons.
Sunset and Glimglam fight for Twilight's hoof in marriage.