Although Better Call Saul brought the story of the Breaking Bad universe to a close, there's still dramatic mileage in a spinoff focused on the early life of Gustavo Fring (Giancarlo Esposito) that could answer some important questions. Breaking Bad creator Vince Gilligan has stated that he's moving on to other projects, but would "never say never" to a return to the rich fictional world he and Saul co-creator Peter Gould created (per Variety). Given that both shows are held up as masterpieces of the crime genre, a second Breaking Bad spinoff series would need careful handling.
https://screenrant.com/breaking-bad-gus-fring-spinoff-major-questions-answers/