Kylo will become a sort of God King ruling over the galaxy who forcibly recruits and trains a vast number of Force Sensitive pupils to become the new Knights of Ren, and creates a new Senate to keep the peace. Rey must then defeat Kylo by turning these students against their teacher, where they oust him from power. The students are reunited with their families from across the galaxy where they become local guardians of peace and justice, while the new Senate becomes a democratic institution freed the influence of Sith tyrants or corrupt Jedi Orders.

Rey, following her dreams, becomes the lead chef of a popular galactic cooking show.
Finn writes a tell-all book about his time in the First Order, and is the principal of a school for deprogramming First Order soldiers.
Rose becomes a hard-hitting anti-corruption journalist and avid antique dealer.
Kylo and Hux run rival demolition and scrap metal companies which are both eventually bought out by Watto Inc.
Poe becomes a Holovid personality and talk show host as an expert on human-cyborg relations.
R2-D2 and C-3PO run a highly experimental and dangerous space-time travel agency which is shut down after Leia Organa disappears while visiting Alderaan circa 50 BBY.
BB-8 becomes a movie star and after a hundred years of fabulous stardom becomes president of the galaxy.