Apparently the new Season is in development and from Channel 4s website I got this quote:
"We're on the hunt for local restaurants run by people with a passion for food who deliver great food, great service and a great atmosphere. At the end of the next series of The F Word we'll be crowning The F Word's Best Local Restaurant."
sounds pretty interesting. The deadline for submissions is July 10th 2009 so it wont be airing before than.