During an exclusive interview with TODAY, Bob Odenkirk revealed that if Saul were to return, the story would need to reflect where viewers last left him, serving an 86-year prison sentence. Still, for Odenkirk, the role holds a deep personal significance, and he admits it wouldn’t take much to bring him back:

After 14 years in the 'Breaking Bad' world, Odenkirk hasn't looked back, but says he'd be up for one (or two) more 'Nobody' films.

Bob Odenkirk has spoken about returning to Saul Goodman, but I think that would be a mistake because his character has no room to grow after 'Better Call Saul'.