tophat27dc
I'll answer a couple of your questions on which I have some information.
Last night's PMI flights pax were provided with hotac and the cause of the cancellation was the PMI-based aircraft initially going tech and that becoming prolonged to the point that cancellation was decided upon. Fairly recently one E195 went tech in MXP and a replacement was sent down from BHX and and the same aircraft suffered a lightning strike on approach to PRG on Thursday resulting in the cancellation of the following SEN-MXP-SEN rotation.
An extra ATR will be needed to operate SEN-GRQ and some SEN-RNS flights this winter. SEN-CFR is withdrawn for the winter but should reappear for S18. I think it's fairly obvious that the 'new' Flybe routes retained for W17/18 are the better performing ones and that some of the others will be shown to be less successful.
I think it likely that Flybe wouldn't sanction SEN-EDI in view of their own LON-EDI operations - although I don't know that for sure.