Aside from Rihanna being cast as Marion Crane for the final season of "Bates Motel," there are still other questions lingering after watching that Season 4 finale. What we know for certain is that Norma is dead at Norman's hand -- leading the Season 5 story directly into "Psycho" territory. But, how will this all play out?

Vera Farmiga (Norma Bates) and Freddie Highmore (Norman Bates) spoke to Zap2it at San Diego Comic-Con about the changes to be expected in the upcoming season. As far as the shift in the Norma character, Farmiga's only request is that she not be limited.

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"I think it's going to continue being a playground. That was my biggest fear, she would be minimized," Farmiga says. "She was so robust, Norma Bates. I had no idea when I signed onto this that I would be singing and dancing and playing piano -- being funny and being absurd. I had no idea that this female characterization embodied all of that."

Farmiga continues, "I think there's going to be more liberties and lunacy, given the fact that she is a figment ... a ghost that he's creating."

And speaking of Norman ... Highmore is stepping behind the camera yet again to write another episode for the show. Between juggling his on and off-camera responsibilities, it sounds like things can get quite heated on-set ... but for all the right reasons.