"I would love to see Addison back at Seattle Grace at some point for a visit," Rhimes told The Hollywood Reporter recently of bringing both Walsh and Scorsone back to ABC's Grey's Anatomy. "I've said a million times that before the show ends its run, Addison has got to put on her shoes and scrub cap and come scrub in at the hospital. That's a given for me."
While there are currently no plans for either Walsh (aka Addison Montgomery -- or is it now Montgomery-Reilly?) or Scorsone (Amelia) to appear on Grey's Anatomy, Rhimes says they're both "always going to be a member of that family."
"Amelia is Derek's sister and I'm going to want to see that happen at some point as well," Rhimes says.
Source: Hollywood Reporter