The Insider.com

Katherine Heigl's history with Grey's Anatomy is a rocky one -- and one that there's really no need to rehash since the drama was splashed everywhere back in 2009.

• January 19, 2012Sweet P: I Didn't Want to Do 'All-Stars'
• January 19, 2012Britt Robertson: I'm on Team Adam!
• January 19, 2012'Clueless' Reunion on 'Suburgatory'
• January 19, 2012GLAAD Honors TV's Best
• January 19, 2012New 'Shore': Vinny Leaves, Deena's a Mess
• January 18, 2012'Gossip Girl' Preview - Marilyn & Matrimony

So it might surprise you to hear that the actress is actually hoping to come back before the ABC medical drama ends its run!

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"I've told them I want to [come back]," Katherine tells E! "I really, really, really want to see where [Izzie] is. I just want to know what happened to her and where she went and what she's doing now. My idea is that she actually like figures it out, and finds some success and does really well in a different hospital. She was always floundering you know, and so she was always one step behind the eight ball and I want to see that girl take some power back."

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But even Katherine acknowledges that this might not come to pass. "Being a showrunner and being a writer of a TV series like that is so complicated that I mean [creator Shonda Rhimes has] got how many characters are there now? There's a lot and so she's balancing about 40 different storylines, so I don't know if it fits in to their sort of vision for this season or next or however many seasons it goes."