Vince Gilligan has expressed nervousness about moving on from the universe that includes the character Heisenberg, which is associated with the series 'Breaking Bad' and its spin-off 'Better Call Saul'. The sixth season of 'Better Call Saul' has premiered, with storylines involving characters such as Kim Wexler and Gene Takovic. The season's episodes have explored various plot developments, including Kim's involvement in crime and interactions with other characters.