Last week, right after co-star T.R. Knight announced he will not be returning to the ABC drama, Katherine Heigl supposedly signed back on for another season of Grey's Anatomy.

This came after she supposedly wanted out for a full season prior to now.

And after she withdrew from the Emmys due to "insufficient material."

And after her character supposedly faded into the afterlife last month.

Is she coming back, and if so, will it be as a full-time series regular?

Follow the link to continue reading about Izzie's role in Season Six ...

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