Breaking Bad creator Vince Gilligan responds to the idea of a Walt Jr. spinoff. Played by RJ Mitte, Walt Jr. is present throughout Breaking Bad as the son of Walter (Bryan Cranston) and Skyler White (Anna Gunn). Walt Jr. is arguably one of the key factors in Walter making his initial decision to turn to a life of crime since he needs money to secure a better life for his son, who was born with cerebral palsy. However, despite his outward importance to the story, the game-changing drama series never put a big spotlight on Walt Jr. himself.
https://screenrant.com/breaking-bad-walt-jr-spinoff-vince-gilligan/