This would surprise me. Surely if Flybe wanted LCY routes it would have been included in the original BA Connect acquisition - prior to BA CityFlyer being formed.
In addition to that, it would mean more 146 style (Well Avro's to be picky) which Flybe are getting rid of.
Also, Flybe have not touched LCY since withdrawing many moons ago. Its possible but as I said I would be surprised.