From HMS Illustrious Association Website posted 27th October:
The Latest News concerning the departure of HMS Illustrious, is that she will bemoved from her current location in 3 Basin in HM Naval Dockyard into tidal waters.It is understood that she will depart the UK for the last time sometime in November 2016 however an exact date has not been confirmed as this is subject to the Tugs that will be towing herarriving on-time and of course it is subject to weather conditions not only inUK waters but through the Bay of Biscay.
Update on HMS Illustrious Association website:
HM Naval Base PRESS OFFICEThe departure of Illustrious on the 9th November 2016 'Looks Unlikely'
Colin