Channel 4 have only so far confirmed that they will show a ‘celebrity special’ next year, after it emerged that the BBC Bake Off contract included a so-called “cooling off clause” that prevented any new broadcaster showing a full series until 2018.
However, viewers anxious for Bake Off news can breathe a small sigh of relief: the BBC is almost certain not to invoke their right to stop the series being show in full on Channel 4 next year. [..
C4 has only confirmed that it will air a celebrity edition of the show in aid of Stand Up to Cancer and has not said when this will air. Stand Up to Cancer normally airs in October.
Source and more: RadioTimes