Vampire Diaries - Season 5

The fifth season will premiere on the 3rd of October, 2013. Finally its coming back, after so much question mark from season 4. End of season 4, Silas reveal to Stefan that he is his doppleganger and a shadow self has to be create because nature needed a balance. One who can die, does that mean all vampire has a doopleganger who can die. And didn't they mention once a witch is turn to a vampire, they will renounces her power. Why Silas still has his warlock power ?
Anyway look out for the new tv series - The Originals. A spin-off from Vampire Diaries. It will air after Vampire Diaries, on the 3rd of October 2013.