5. LaGuerta will Arrest Dexter
As much as Batista is an important character in the Dexter universe, I really can't see anyone other than Debra or LaGuerta from the Miami Metro dealing with Dexter, and clearly the show has set it up so if anyone will find out about Dexter other than Debra it will really be LaGuerta... that is, unless she conveniently dies sometime soon. Let's hope that doesn't happen. LaGuerta arresting Dexter is far more likely than LaGuerta killing him, however I really think the show would make a huge mistake if they don't end season 7 with LaGuerta pinning the Bay Harbor Butcher murders on Dexter, much like Hank finding out about Walter as the mid-season cliffhanger. Really, if she doesn't work this out then she is the worst Detective there has ever been. The clues are all there, she pretty much has all the answers, it really shouldn't take her two seasons. Although this next prediction seems highly unlikely, I think it has potential anyway, though I don't see the writers taking this direction. What if LaGuerta were to arrest Dexter by the current seasons end, and show the next season Dexter spending his life in prison or perhaps death-row. Then, much like Silence of the Lambs for example, the Miami Metro have a deadly serial killer (perhaps even a Dexter copy cat) on their hands and have to call upon Dexter to help them solve this case. It would be a huge leap for the show, but perhaps it would be much too different from the tone of the previous seasons. Although this could allow for Dexter to have an almost bitter-sweet send off. Most of us probably don't want to see Dexter die, and his crimes will certainly, considering this is Florida we are talking about, see him put to death... so perhaps if he were to make a deal with the police that if he were to catch the killer, his death sentence will be dropped. That said, in the last episode of Dexter, Dexter expressed his worry that he simply couldn't face his entire life stuck behind bars.