Not sure if my sums are right?
LHR-BRU-LHR = 1 or 2 ER4 aircraft
LHR-KBP-LHR = 1 A319/A320 aircraft
LHR-TLV-LHR = 1.5 A330 aircraft
LHR-AMS-LHR = 2 A319/A320?
LHR-PMI and LHR-VCE = could both account for 0.5 aircraft per day?
LHR-ALP - tied in with DAM anyway, so maybe no real total frequency reduction as a result?
I make that:
2 ER4 aircraft going back to regional (tallies with release)
2 A330 aircraft going back to lessor (again, tallies with release)
4 A319/A320 aircraft going back to lessor
...so that just leaves one more airbus unaccounted for?
Also: above comments appear to suggest that 2 A330s will be going back to lessor (leaving one) but that the fleet of "two long-range aircraft plus A321s" will service the mid-/long-haul routes.
I assume this means that despite laying off their own flight crew and returning aircraft, BMI intend to extend contract for the B757...this presumably being the second of the "two long-range aircraft".