I also heard they were taking a year off, should be back on in 2013 at Bewl(??) Water. But like the other have said, the organisers aren't spring chickens anymore so maybe not....
We started Grill-n-Chill last year in September as there was only one vw show/event in Kent at the time and thought we would like to have somewhere local to go and "chill" with our family and friends without having to visit one of the bigger shows. For us it seemed very similar to Peppercorn and that was the vibe we were aiming for. Fingers crossed we can do the same for 2012 and help to plug the whole left be Peppercorn and VW Expo before that.
Cheers Anton