Florence has been extended to run into November so BA must be happy enough with it's performance or they just don't have anything better for the aircraft to do. It will be interesting to see what happens next year when Jet2 start flying into Pisa as they'll be offering both higher frequencies and friendlier timings.
As for the other routes given the multiple options avaliable for Ibiza, Malaga an Palma I don't think a weekly E175 is going to be a huge loss if they don't return.