Well, they got rid of the Arson Killer fairly quickly. I thought for sure this would be the killer to take us to the end of this season. But now it's clear that they are ramping up Hannah's background story a little bit more. But its LaGuerta and Matthew's private investigation into the Dexter as the Bay Harbor Butcher theory that will come to a boil by seasons end. Will it end during the Season Finale? Probably not. It's most likely going to carry over into the next season and be the basis of a huge Man Hunt for Dexter. That's how I would write it, knowing that Season 8 is the swan song.

Even though Matthews is acting "shocked" at the idea of Dexter being a serial killer, I'm still convinced he has always known and that he will try to warn Dexter. If he doesn't know, I still think he will warn him just to get back at LaGuerta for f*cking him over and getting him sh*t-canned from Miami Metro.