I've not been able to verify this yet so I'm placing in rumours.
Don't know if you already knew this but I just moved to LA and i was with an old friend who also happens to be a huge lost fan and he told me he had worked on a movie with the actress who played Emily Locke in Cabin Fever. He told me that she has been called back for a Lost episode this season and apparently Richard Alpert will be filming with her. Just thought that was cool and wanted to share.
Source: DarkUFO Reader