'Rose'? Played by Kelly Marie Tran, she's one of the newbies in The Last Jedi, a character who she says is immediately drawn to Finn. I go to the movies. She is a gunner who fights alongside the likes of ace fighter pilot Poe Dameron (Oscar Isaac).
Luke Skywalker's response was to run away to the distant planet of Ahch-To, which is where Rey (Daisy Ridley) found him right at the end of The Force Awakens. And he's sitting on this island in the middle of nowhere. As the leader of the Resistance, Leia has to deal with the loss of Han Solo and the repercussions of the devastating destruction of the Republic by the First Order.
Apart from the Porgs, "Star Wars: The Last Jedi" will also introduce the Caretakers, who, according to Johnson, only tolerate Luke Skywalker's presence on the island and communicate with him through a blubbery sort of Scottish fish talk.
Is Luke super bummed about Kylo Ren? Finn's super cool. Even though [Rose] is good at what she does, she's not known. That's the new Praetorian Guard, bodyguards to the First Order's big scarred cheese Supreme Leader Snoke. "She's not royalty. She's someone who is just like everyone else". The Last Jedi will reveal more about the character and his plans, but, as the article points out, "his history will remain somewhat murky". Mysteriously codenamed "DJ" by the filmmakers, his character - a dangerous "man in black" type - has been the source of much speculation, most of which has been shot down by writer/director Rian Johnson and Lucasfilm.
"I think he probably looks out on the horizon and wishes that he could be more effective, could be what Obi-Wan wanted him to be, but life is imperfect and without conflict there is no drama". He's trying to leave.
Actor Mark Hamill shed some light on that mystery in a recent interview with EW, and it sounds as if Luke is kind of a buzzkill these days.
Johnson wrote the script for the movie himself so hopefully he changed things up so it's not essentially a retread of The Empire Strikes Back.
But Leia Organa never wavered in her commitment to fighting to ensure freedom in the galaxy despite the grief or trauma she encountered.
As for how Fisher's passing would play out in the film, director Rian Johnson said that he hopes fans will be pleased. The space battles in this film should be epic. But these are new characters, they're dealing with new things, and that ultimately is what defines the movie.