I know everyone's probably curious about when Izzie's coming back.... if at all. Well, never fear, Ausiello's got the answer to this question! Check out the spoilers and see what you guys think!
Question: What’s going on with Katherine Heigl? Is she ever going to be returning to Grey’s Anatomy? —Hannah
Ausiello: Heigl’s due back on the Grey’s set on Monday, so it looks like Izzie will be in this season’s final five episodes. What happens after that is anyone’s guess. In other Grey’s news, I just learned that a second Mercy Wester will not be returning next season.
Source: Ausiello Files