Pete - all IT charters have been ditched as part of the restructuring plan. It seems a particularly crazy decision in what is essentially a Monday to Friday operation with some limited scope for flying on Saturdays and Sundays given that the airline is trying to improve crew and aircraft utilisation. However, it's their train set to play with and their decision to make, and for which to be accountable to their shareholders.
Consequently, you won't see any jet charters from any UK airport by Flybe, but might see some rather odd replacements drifting in to take over the bits of flying which remain.