God, I wish someone would clue in Showtime that the reason the ratings are up
is because the show is finally aiming towards a real finale (with huge stakes and revelations along the way), and people want to see how it all ends up.
The only way I could possibly
go for an additional season is if it follows Dexter on the run from the law, and completely gets away from the usual characters and settings.
But if it's just more of the same, boring Miami PD crap, then hell no.