"I *believe* Locke, Eko and Desmond will be back. Terry O'Quinn and SexAAA (Adewale Akinnuoye Agbaje) are both under contract, and I've heard Desmond will be back. Now, that could be in a flashback, but it was my understanding his next appearance would be more of the still-breathing-on-the-island variety."
Source: Kristin on E!Online
