In fact EI-EHH entered service at SEN this afternoon and LY-MCA has ferried to DUB to commence operating Aer Lingus Regional routes. Perhaps this will continue until EI-REH returns to service.
As far as the question of S2016 is concerned it's anyone's guess as to what will happen. The ATR42 is probably more suited to the level of demand during the winter on the CFR, RNS and GRQ routes. The Flybe S2016 timetable will be released on 10th November but that may not include the Stobart routes if last year was anything to go by when they weren't released until late December.