I prefer them to reveal that Han and Leia had twins, a son and a daughter, before Kylo was born and that they’ve been in the outer rim dealing with other things, only to have them reveal themselves. On top of that, a series about Luke, Leia and Han, filling out their characters after the OT events and softly retconning the ST characterizations, so the ST still happened, but what their characters meant and were doing are revealed to not be what we thought then.
A pitch I’ve been piecing together for Luke’s backstory, as a connection to that series or something connected to the Rey movie, that I thank God for the ideas for, if He wills, is:
Luke agrees with the jedi rule of no attachment, but he perceives that the jedi were disconnected and too fearful of allowing their members to have lives and partners and families based on the idea that they could turn to the dark side, so Luke uses the rules and pursues training to assist his students to engage in healthy connections rather than attachments.
Luke raised his daughter Ana with Mara for years, before he convinced her to go into hiding to protect her. Feeling responsible for his wife and child, feeling like he has to be better than Anakin his dad, Luke is desperate to not allow his wife and child to be harmed because of him or his actions, so when they go into hiding (from who, I don’t know, maybe Snoke or someone else relevant to more present day stories), Luke is torn up and in conflict about not being there for his child and wife because his dad wasn’t there for him and he feels responsible and like he has to fix whatever problem is happening so he can be with them.
Luke he senses Snoke’s influence on Kylo, so he reaches into Kylo’s mind to find out the answers and (because Kylo knows about Luke’s wife and daughter and that he put them into hiding, letting everyone think they were killed, which is why Leia and Han are so sympathetic to Luke, not hating him, because Luke did tell them what he did in the past) he sees that Kylo could lead to them being in danger, this fear and attachment to his wife and daughter and the idea that he has to correct his dad’s mistakes and be better, leads Luke to pull out the lightsaber to protect them in that moment.
After that event, Luke found that Kylo had killed his older teens/adult students, leaving the children alive, so Luke, feeling responsible for the lives of these children and wanting to protect them, hid them across the galaxy to ensure their safety.
This would all re-contextualize Luke’s character in TLJ, by revealing he was in hiding to prevent the children from being found (maybe a part of that being Luke’s wife Mara and his child/maybe daughter Ana), and because he did resent the jedi for using padawans as apart of being soldiers.
That, plus, he feels he failed because of his arrogance in that he thought he could correct his perception of the errors of the jedi by trying to avoid what he saw as their mistakes, but in doing so Luke left himself open to manipulation and all his late teens/adult jedi padawans were killed, and being separated from his daughter and wife to protect them as well, making Luke feel depressed, as he feels like no matter what path he chooses, the lives of those he wants to protect will be lost, which is why he’s so defeated in TLJ, because he feels trapped between a rock and a hard place, trying to protect the children, but also wanting to help others and his sister, and fearing training Rey.
Leie would struggle with her connection to Vader and what that means for her and her more aggressive personality traits, struggling with the idea that a monster is apart of her, someone she personally hates and the fear of becoming someone driven by pain and hate, while she hyper focuses on imperial remnants.
Han would be becoming a spy working in the criminal underworld and the idea of being a hero still versus being a parent, as that’s something he doesn’t fully understand. In this we could do the first official reveal of Han and Leia having twins before Kylo was born. Set it up that Han has anxiety about being a dad, while also establishing Leia is pregnant. End of the arc Han and Leia return home to be met with the twins, and Leia being pregnant is actually about Kylo.
Also, reveal that the first order never actually took over the galaxy (because how would they do that?), they had just enough resources to make a big splash and make themselves look big and intimidating to the resistance as a fear tactic as they spread propaganda about them having taken over the galaxy, when in reality they’d taken over a few passive planets at most. They reigned over the resistance in fear tactics. Few even knew about the first order’s attacks, that’s why no one answered when Leia called for assistance in TLJ, they thought it was a prank call. That’s why they came in TROS, because when people heard Palpatine broadcasting his return people actually thought something was happening.
There. All harsh issues, I think, are patched for the characters and their stories, no longer making them abject failures and keeping the Skywalker family going.