Official trailer for Dexter season 7. Premieres on Showtime Sunday September 30th at 9PM ET/PT.
Masuka will not be killed by Dexter. If you're a fan of the show you should know that Dexter has had a small amount of " Day Dreams"
where he analyses the multiple choices he has. In that case, it would probably be Masuka uncovering some proof about who really killed Travis. Killing Masuka him would be a possibility.