Good articles ALA, thanks.
The B777X orders are for delivery starting in 2020. Those airplanes are more realistically replacements for the current B777s. In 2020, if A6-EMD was still in the fleet it would be 23 years old. The first 777-300ER joined the fleet in 2005 so would be 15 years old. The B777X would also be another good reason to cancel the A350 orders. If not the whole order, at least a portion of it since the two types pretty much compete against each other. One will be better and my bet would be on the B777X.
There is a limit to the size that the Gulf carriers can obtain primarily because of airport and airspace congestion.
Competition with them is difficult, but the 787, 777X, and A350 will open up some real possibilities, IMHO. As world air traffic grows it will become more viable, both from an aircraft capability and passenger demand standpoint, to offer non-stop point to point service that bypasses the Gulf. The 787 is an ideal aircraft for that as it can fly long thin routes very economically.
There will still be a demand for the hubs in the Gulf as their geographical position makes them a perfect stopover point on many city pairs. That and a not insignificant percentage of passengers enjoy the leg stretch after 7-8 hours over a non-stop 16 hour flight in coach. Price is always key though.
What we haven't seen much of, but will inevitably come is the low cost long haul model to compete against the established players. Singapore is starting it with Scoot. Qantas started it with Jet* International and the UK charter airlines do it. Not a great thought because the service quality of the Gulf carriers is the last vestiges of the bygone era of romance in airline travel. I know I'm going to miss my first class seats on EK after I leave.
Typhoonpilot