Is Katherine Heigl Returning to 'Grey's Anatomy?'

Will Katherine Heigl, aka Dr. Izzie Stevens, ever return to Grey’s Anatomy?

The 40-year-old Suits actress addressed the possibility in a new interview with ET, saying the decision would be “a tough one.”

PHOTOS: Check out the latest pics of Katherine Heigl

Katherine left the ABC series in 2010 during the sixth season.

“I haven’t [thought about Izzie] in years,” Katherine said. “I don’t know. I don’t know if I would or if I wouldn’t. I almost feel like that would almost be distracting again to, sort of, what they’ve done with that show in the seven years since I left… and what that’s become and what it is to the fans now.”

“It must feel like it would just be kind of like, ‘Yeah, we already let that go… why are you here?’” Katherine Heigl added.

The ninth and final season of Suits premieres July 17 on USA. Watch the trailer below!

Season 16 of Grey’s Anatomy premieres on September 26. If you missed it, see who won hottest Grey’s Anatomy guy and hardest Grey’s death to watch in our Just Jared fan polls!