Responding to questions regarding Grey's Anatomy at the TV Critics Summer Press Tour this week, series creator and executive producer Shonda Rhimes was asked a particularly intriguing one about Addison.

"Will Addison make her exit to Los Angeles on Grey's Anatomy or on Private Practice?" asked a reporter.

Breaking her own stringent policy about doling out advance story lines, Shonda Rhimes revealed the answer.

"We will see her tender her resignation to [Richard Webber] in the first episode of Private Practice."

Shonda Rhimes, Taye Diggs and Kate Walsh answer questions Thursday.

Meanwhile, at the event, Tim Daly said he is thrilled that his previous series, the critically acclaimed but ratings-imparted The Nine, will be returning to TV August 1 - even if the story lines won't be wrapped up.

And as for whether Kate Walsh (Addison) ever thinks of how she went from a guest spot on Grey's Anatomy to her own series?

"Yeah, I do," she muses. "I feel really fortunate. I could never have dreamed this. I don't mean to sound too Pollyanna-ish - I'm not. I'm actually a cynical bastard with a cold, dark heart."

Okay, then. Well, we love Kate Walsh just the same!

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.