User blog comment:Ḡwẵine Ḹٍٍkƨ Ĺiĸe Ͼềлȑềd/Series 5 will be the last! - unless we act now!/@comment-4650675-20120909194837

Nah, still don't believe it. He may have been told to say so, so that everyone will be surprised when series 6 is announced.