This was said during LOST’s TCA on Jan 12.
Lindelof about Elizabeth Mitchell: “She has been amazing with executing our vision of the show. That was something we presented to her when we told her, Hey, you’re falling into a hole and sustaining some rather significant injuries, and we have some plans for you in the next season that will allow you to go and do another show, but we hope you will continue and stay with us for a little bit. And she was awesome.”
Source : Zapit | Thanks Stef & Cris