The Witcher 4: 5 Ways To Do The Perfect Sequel
5. A Post-Wild Hunt World
This scenario would take place a few decades, maybe even a century or so after the end of Geralt's adventures, with an all-new protagonist at the helm.
Witchers were already a dying breed in Wild Hunt, so the story could follow the new witcher as one of, if not the, last member of the caste as they try to get by in a world that seemingly has no place for them.
The game could also give players the option to load their Witcher 3 game save, and thus influence the way the world looks. Who won the war, who became the ruler of Skellige, whether Ciri became empress or not, and even what became of Geralt would all factor into the world building.
As for the new character, it could be a member of the School of the Bear, Griffin, or Manticore - the three witcher guilds that have been least explored in the games.
The latter would be the most intriguing, as it's located in Zerrikania, a fabled land often mentioned in the lore but never visited. Perhaps it could even be the likes of Eskel, should CDPR seek to bring back a familiar (scarred) face.