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:

Pounding, pounding, for hours and hours and hours. Alright, that's enough. [laughs] Even I can't take it.

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'.