FlyBe are taking another 3 175s this year according to Jethro's. These seem to be replacing some of the Dash 8s, so I'm not sure that FlyBe have the capacity to start new, unproven routes at present.
They have recently announced lower profits, so that's another reason why they aren't likely to want to throw resources in to money-burning start-up routes from an unproved base.
Sorry!