There won't be any more Eggheads. The episodes being shown currently were filmed last year.
In its wisdom, the BBC thinks that the audience are too old and it wants to encourage younger viewers. It also says in today's daily paper that this is one of the most popular programmes on BBC.
According to the telegraph the series on now will be the last. We need eggheads as a member of the older generation it keeps our brain active and it is good to exercise the mind. The younger generation spend most of the time texting and playing games on smart phones so the BBC is wasting it's time if they think axing eggheads will encourage younger viewers!