I would envisage that Flybe will retain all the current service after the E145 has gone, with all of those mentioned changing to the Q400. The lower prices offered should encourage growth in pax numbers on these services enabling Flybe to evaluate the routes for the E195 for the future.
It would be a very brave decision for Flybe to increase the aircraft size on these routes from the E145 to the E195 overnight given the current economic outlook. I would imagine that other routes ex BHX , maybe some extra EDI/GLA services moving to the E195 before the likes of FRA and STR.