It may only be a small number of aircraft, just two, but RAM is said to be unhappy at the idea of taking the aircraft and is looking for alternatives, including NG versions.
FlyDubai has been the biggest cancellation so far having converted to Airbus, and there are persistent rumours that if they don’t get a deal at least one other large order for 100+ aircraft is hanging in the balance with another major airline.
Boeing is taking its time to reach compensation settlements with airlines, have openly concluded just a handful.
Icelandair is one but the terms of the deal remain secret. Despite that, officially the airline is still reviewing its future buying strategy and has opened dialogue with Airbus for the A321XLR to replace its 757’s.