A Choice, And An Eko?

Lost's Mr. Eko, actor Adewale Akinnuoye-Agbaje, says he loved playing the character and hopes he'll return for season 6. This is a bit odd, as he left the show early because he wanted to, or because didn't get along with cast and crew. Either way, a lot of fans figure he had his chance, screw him.

The bigger question is what sort of season will 6 be? Does this mean anyone can come back? And will there be one reality, or a bunch of alternate realities, where everyone is alive?