As usual with "StrategicAero Research", it not worth the effort reading. The language used gives it away as not being a sensible assessment.
The 77X will be used as replacement frames for the 77W, they have not address how the 777s will be disposed of. The big assumption is Boeing can deliver on what they have promised, they failed on their two recent projects, the 787 and the 747-8.
Almost all ultra long haul flights EK is replacing the 77W with the A380, it carries more payload, further, with 15-20% lower seat costs. EK have stated many times over they are happy with the A380, and placed a large follow on order for them last year.
Emirates is paying Doric US$1,260,341 and £360,136 per month for the first 10 years for the A380s, and then US$432,749 and £455,058 for years 11&12. Doric purchased the A380s for US$245 million each, with a valuation at the end of the lease of US$139 million. They are making good money from them. The public prospectus for the Doris issue are on the internet for anyone to see.
http://www.dnairtwo.com/investors/DoricProspectus.pdf .
BA just reported they are getting 95% load factors on their A380s, other airlines have made similar comments about getting good load factors.
Airbus has not spent over $1bn trying to fix the wing cracks, they made an accounting entry ("charge") in their books before they commenced the fixes.
A380s are not being rewired, that is all finished. They are presently carrying out the wing AD on 9 aircraft at the moment, Air France 3, Qantas 10, Singapore 9, Emirates 2, Korean 2, Lufthansa 1, Malaysia 3, Thai 2 to go.
The chances of the A380 getting a neo treatment is very good, seen it on the DC-9, 737, A320, 747, 777, A330.
P&W is looking at a mid sized twin GTF later this decade, they have their hands full with 13 different GTF engines for the E-Jets, CSeries, MS-21, MRJ, and A320neo.