i think in October of 2012
The season 4 of The Vampire Diaries will start in September
June 28
CW has just picked up The Vampire Diaries season 4, so to answer your question yes there will be a season 4 for the vampire diaries. Vampire Diaries is set to return for a fourth season on September 16th, 2012.
October 11
October 2012
Sometime in February :)
Go and watch it online.
October
Yes there is a 4th Season of The Vampire Diaries. In the UK and America they are currently showing Season 4.
september
yes
Some time in October 2012... the exact date is still unknown.