Airbus really need to think of ways to improve A350 to meet the demand from SQ/EK...
But on the other hand, to reduce the delay of delivery to keep QR...
I think what Airbus really need to do is to improve A350 to be competitive against B787... But to keep their orginal customer happy with the later delivery...
Maybe Airbus could consider selling some A330/A340 at a lower price to their A350 customers to cope with their growth during the 2yrs delay... Since Airbus give heavy discount all the time anyway...