Some ideas of mine, that might be too hard, but I think they would be cool to implement. Of course, I don’t think the film needs improving, but I think some edits might be nice. My idea is to make the film maybe an hour and a half, and cut a lot. Some ideas for cutting are:

-Cut most of Poe’s “too cool for school attitude” so the audience connects to him less and doesn’t believe he is a main character.
-Cut Captain Phasma being in the spotlight. Now she is merely an extra.
-Cut General Hux, as most of his scenes centre around Starkiller Base and Snoke.
-Cut Grand Master Snoke, this may be hard because of the Kylo is Han’s son reveal, but it might be doable.
-Cut Starkiller Base entirely. Now it is just a base for the First Order, not a superweapon.
-Cut any scene based around getting into Starkiller Base and whatnot.
-Cut Poe returning, now he truly is dead. This will be impossible as a trilogy, but my edit is based around making it sort of standalone.
-Cut the attack on Starkiller by the Resistance.
-Cut Finn being loaded onto the rescue ship. Now he is dead.
-Cut Rey meeting up with Luke Skywalker, end the film with her leaving that planet that the Resistance is on.

Obviously this would be quite a heavy cut, just to make a different type of film, not because I think it needs improving.