I think you'll find that 'CI' is being refurbished/rebuilt and will be returned to service soon. In reference to another topic, Guernsey cannot 'sort out' their runway length so the EMB 190's will not be going to GCI.
Mind you I did hear that Aurigny were going to 'take on' a brace of FLYBE's 146's and so keep a jet service going to LGW.. I did hear it in the bar
but then this is a rumour site