Sadly, we've confirmed that Diana Wynne Jones will be unable to attend the convention due to ill health. We hope that she's feeling better soon, and we'll organise a card for her from the convention. Paul Cornell has kindly offered to do an extra panel or two to help us out. As previously stated, we'll give a full membership refund to anyone who no longer wishes to attend the convention.
An updated draft of the programme and other information can be found here, but may still be subject to change.