Though Cranston doesn’t have a “burning desire” to play Walter White again since his story was complete, he trusts that Gilligan and Gould know what they’re doing with Better Call Saul for the show’s final season.
That doesn’t count Bryan Cranston out of the final season of Better Call Saul for sure, however.
He said if Vince Gilligan and Peter Gould told him they wanted Walter White to make an appearance in the final season, Cranston would do it, no questions asked.
But he’s fine either way, being able to enjoy the series as an audience member and fan.