When "Breaking Bad" spin-off series "Better Call Saul" returns on AMC with season 2 in February 2016, it may focus on a few exciting developments in the relationship between Jimmy McGill (Bob Odenkirk) and Mike Ehrmantraut (Jonathan Banks).

Creators Vince Gilligan and Peter Gould have already revealed that they are planning new surprises for viewers, which could also include the protagonist's transition from a lawyer to a criminal.

"I think what happens next is actually going to surprise people. It's not what we thought it would be," Variety quoted Gilligan as saying.

However, Gould does not seem to be very excited about the changes that are going to take place in the upcoming sequel. "The fact that people have embraced Bob's performance as Jimmy McGill and really gotten into this character, the audience feels the same as us, which is that we love him so much, we're a little bit sad he's going to turn into Saul Goodman," he said.

Teasing further about Odenkirk's character in "Better Call Saul" season 2, the creator said: "There's something tragic about the fact that this guy who is so open-hearted and essentially a decent person becomes this drug lawyer. It creates a lot of tension in the show."

Meanwhile, actor Jonathan Banks revealed that viewers will learn more about Ehrmantraut in the upcoming sequel of the AMC spin-off series. "There will be more reveals about Mike. I'll just speak for my character. We learn a little more and a little more," he told The Wrap.

AMC will premiere "Better Call Saul" season 2 in February, 2016.