While nothing has been confirmed, Maggie Grace has said in an interview that she is going to Hawaii for a project, hinting heavily that she may be returning to Lost for the final season. This comes as Dominic Monaghan has appeared in an ABC commercial, hinting that he may be bringing Charlie back next season as well. Ausellio over at Entertainment Weekly claims that Monaghan is actually appearing on another ABC show, and the promo is just to get people talking. However, there are rumors that Charlie could return. A lot will depend on how the finale will affect the storyline (whether everthing is reset), and word from the set is pretty scarce so far.