To my knowledge Flybe now just have the one remaining 146-200 in the fleet. G-JEAS is owned and not leased, hence it still being about.
3 or 4 of the 146-300's are also owned so I guess Flybe will try to work out if there are buyers for these, or arrange for them to be parted out as a last resort. In the interim there is little cost associated to flying these hulls and so providing the operating costs are covered and they can afford the thirsty fuel bills, all is good for Flybe!