Would this have been a better plot:
So the film starts with the Republic still standing, and the First Order not being a thing. Luke is training Jedi and Ben is his greatest student and his apprentice. Throughout the film they discover that the First Order (or some other faction whatever you want to call it), is starting to increase in number and is becoming a legitimate threat (much like the Separatists). There is no Snoke, instead Darth Plageius (he didn’t die when Sidious “killed him in his sleep” because he knows how to cheat death, he was waiting until Sidious was dead before rising to power again) is behind the rise in the First Order. Ben is seduced by Plageius and turns to the Dark Side. When Luke and Ben (now Kylo Ren) are on a mission, Kylo betrays him and leaves him for dead on the island planet to die. Rey (or some character in the place of Rey) was one of Luke’s younger, less advanced students and he/she, now being the dominant force user now that Ben has betrayed the Republic and Luke is marooned. She joins with the Republic Army to counter the threat of the First Order. Also there is no resistance in this movie, instead it's just the Republic vs. The First Order (or whatever you want to call it)There is also attention paid to a soldier in the First Order (FINN) who will later defect in the 2nd or 3rd part, but instead of him going through his character arc right as we meet him, we get to know him as a stormtrooper and what exactly caused him to want to switch sides. Also there are no Storm Troopers, First Order Soldiers look nothing like Storm Troopers. Throughout the course of the first film and the first half of the second film FINN is ordered to do immoral things like burn a village down, shoot innocent civilians in cold blood, etc. The big climax is the heroes (Han, Leia, Chewie, Rey, Poe, etc.) find the first order base, there is a battle, which focuses on destroying a Dreadnaut which they do, however most of the FO ships escape. Kylo will still kill Han Solo (Han and Leia never split up). Rey and Kylo also fight however Rey loses and has to be saved by someone else (Poe maybe???). The film ends with Luke waking up (he didn't die) force calling Rey, telling her where he is and she/he finds him and Luke immediately begins training her to be his new apprentice.
In the second part I thought at the very beginning the Republic would be searching the galaxy for the First Order's base of operations, however the First Order uses this as chance to take advantage and they invade Correscant, hoping to kill the new Supreme Chancellor and take over the government. The first act would involve Leia, Chewie, Poe, and other Republic leaders defending Correscant and saving the Supreme Chancellor. However they are eventually overrun and Leia, Chewie, Poe, C3PO, BB-8, the Supreme Chancellor and other government officials escape. The second act involves the group trying to meet up with the rest of the Republic Army that was spread across the galaxy however there is a traitor on the Falcon and their position is ratted out to the First Order who captures them. Rey and Luke have been training on the Island Planet the whole time (R2-D2 is with them as well), however they see that their friends and the Supreme Chancellor are captured, they both decide to leave to help them (Luke is not a coward in this). Meanwhile FINN eventually decides that he can no longer be a soldier of the First Order and he rescues the group from captivity, this is very reminiscent of Chris Taylor in Platoon who again is morally conflicted when he is ordered to burn a village down. Rey and Luke arrive, Luke has a lightsaber fight with Kylo (no force projection, he is actually fighting him) however loses and is killed while Rey rescues everyone in the Falcon and they escape.
The third part would involve the group retaking Correscantand Darth Plageius is now the Supreme Chancellor. I'm wouldn’t have Kylo redeem himself, that's just Anakin's story all over again. The Supreme Chancellor dies in the battle to and Rey defeats Kylo, but then Plageius cuts her leg off. However the force spirit of Anakin (or Luke???) takes over Kylo’s mind for a brief period, saves her from Plageius, then Kylo dies. Since Plageius can’t die or else he’ll just come back to life the Republic arrests him and he rots in some kind of “anti-force” prison cell where his force powers don’t work. Rey is given a mechanical leg, Leia is elected to be the new Supreme Chancellor while Rey, and FINN join the Republic Army.
Yeah I know this isn't great, I came up with this in like 5 minutes but I think it’s a better idea to show how the First Order rose to power, how Rey knows the force (she was simply just one of Luke’s students and not a Mary Sue), and what exactly happened to FINN that made him want to make such a radical decision. When the Force Awakens first begins pretty much everything that had been accomplished in the OT had been undone and that all took place in the fucking title crawl.