Just been confirmed, bmi to put A320s (156 seats) on in place of A321s (pos 195 seats) - bhd lhr - starting next week. Will run like this until the end of the winter schedule, when it says it "expects" the A321 to return.
Apparently, it is for the software to be updated on the A321. Without it, there would have to be more diversions to BFS to comply with new stricter Airbus guidelines re landings and weather.
ezy are close to having half the London market. Come the start of November, there will be 15 daily 737 flights from BFS to STN, LTN, and LGW (mon-fri)
By comparison, from bhd there will be 8 (mon-fri) with bmi to lhr and 4 (mon fri) with flybe on 146s to lgw.
It would be surprising if ezy weren't carrying more than 50-55 per cent of London traffic this winter.