The problem with the Sequels we got is that it regresses the trio and doesn’t let them be the heroes of the stories alongside the new generation of characters. They can only be carbon copies of what we knew them as or be completely different while going through character development they already overcame. They weren’t able to grow and evolve. Instead it was about re-capturing exactly what we remembered them as in the Original Trilogy.

For more context, Luke and Han were both meant to die in George’s Sequel Trilogy too. To be fair we don’t know how he would’ve handled Han’s death but do know it was going to happen in Episode VII according to Harrison Ford. However with Luke it was in Episode IX after he rebuilt the Jedi Order throughout the trilogy. Naturally I think this implies the Solowalker Daughter in his story would be given the Jedi Order before he does die. He passed on what he knew to continue off of the plot thread in Return of the Jedi. He always needed help in the Original Trilogy. So it’s great in my opinion to see Luke have a material victory more of his own outside of everyone else’s shadow.

Leia was meant to become Supreme Chancellor to echo storybeats from The Phantom Menace and bring full circle the idea of democracy returning.

In the end, it’s a lie to think you need to reduce your characters to prop up new ones. Luke only overshadows the Solowalker daughter if you let him and besides in Star Wars no character is more important than the other except maybe Anakin but even he needed help from Luke to find redemption and defeat Palpatine. It’s all about symbiote relationships.