This is what they have posted on the Singing Kettle website http://www.singingkettle.com/kettle-news:

Monday 8th October

"CILLA AND ARTIE TO BOW OUT OF THE SINGING KETTLE

After 30 glorious years, the creators of The Singing Kettle, Cilla Fisher and Artie Trezise today announced that their forthcoming Christmas Tour would be their final stage appearance and at the
same time unveiled exciting plans for the future of Scotlands Favourite Children's Entertainers.

Husband and wife, Cilla and Artie feel the time is right to introduce new blood to continue the huge success of the Singing Kettle brand.
Cilla and Artie plan to continue their involvment with The Singing Kettle and will take on backstage creative roles. Cilla will continue to write songs for future productions while Artie will produce the stage shows as well as direct the DVDs and CDs.

The good news is that the company have begun the process of recruiting a new female cast member to join Gary Coupland & Kevin Macleod for the new tour starting in March next year.

Our 2013 tour schedule is in the process of being finalized and the initial dates are listed on our website. The 2013 show will be called 'Rumble in the Jungle'

Cilla and Artie's final show will be on February 17th at Edinburgh Festival Theatre."