Currently, that unknown factor is not going to influence how the writing of season eight plays out. "I think we’ll still do relatively the same season one way or another because we have some very big stories that are leaning towards Dexter’s end, but whether it leads to the actual finale or not, well..."
Asked if he knows how Dexter will end: "Oh, absolutely, I know how it ends. But whether it’s this season or the next season or further down the line will remain to be determined." He then added, "Dexter is a serial killer and serial killers only end in so many ways, and none of those ways seem to be particularly happy or encouraging. I think if we’re true to who Dexter is, we’re not going to end with Dexter walking off into the sunset."