Looks like Ausiello's spoilers are running a little dry :)
Thanks to John and Howey for the heads up.
Question: I have a really fun assignment for you, Aus. Create a chart listing every Lost alum there ever was, and then next to their names, tell us where things stand in terms of them returning for the final season. I just know how much you love to make lists. —Steven
Ausiello: I have a better idea: Let’s scrap the chart and forget we ever had this conversation. In return, I’ll share this Lost nugget with you: I hear Team Darlton will give us the answer to one of Lost’s oldest and most confounding mysteries. And I’m pretty sure it’s an answer none of us expected to get.
Source: EW