By the name Peter Cosford, I'd say it's certainly Qatar.
Bring it on!
P.S with:
80 Airbus A350s (including options)
60 Boeing 787s (including options)
29 Boeing 777s (including freighters and options)
8 Airbus A321 (including 2 options)
5 Airbus A380-800s
on order, they have got to park them all somewhere! (especially the surplus 29 A330s once A350s start arriving)