Also in "The Departed" who guessed the only way to kill Alaric would be to kill Elena and turn her into a vampire.
Is there anyone who actually thought Jeremy was going to come out of the hunter storyline alive?
Many people guessed the third sacrifice would have consist of twelves witches.
Also many people predicted Silas's lover would like Elena
What Could Have Been: Originally, the 4th-season-spanning cure storyline was supposed to resolve with Damon being the one to receive the cure. However, almost immediately after introducing the cure as an idea, the writers were dismayed to find that a large number of fans were predicting that very outcome. So they changed mid-course, and the cure was instead given to Katherine.