A statement was released a day or two back saying that, with the loss of Leuchars too, the RAF were undertaking a review of their entire airshow participation.
"The RAF Waddington International Air Show is a unique opportunity for the Station to engage with our visitors to showcase the work, people and capability of the RAF and its partner organisations. I am immensely proud of the effort Station personnel have contribute to this year’s Air Show both in the months leading up to the event and on the day. It is very much regretted that due to essential work due to be undertaken to refurbish the runway at RAF Waddington, the Station will be unable to put on an Air Show next year (2015). Due to this work and the movement of the RAF from our other air show location (RAF Leuchars in Scotland), the RAF has decided to complete a full review of its air show commitments; the results of the review will be announced in due course."
http://www.waddingtonairshow.co.uk/news/