Where did you get your information from, a Kinder Egg?
Benidorm is written (and always has been) by Derren Litten. There is a Special on either Christmas Night or Boxing Night then the new series starts next year, probably around Easter.
It's not live lol. They've already wrapped filming [the Special].
After the fourth series has aired, the cast are going "on tour" with a stage production which will tour and will appear at Theatre's across the UK, probably in 2012.