Exactly why I think Airbus should bite the bullet and redesign the wings
Except that redesigned wings tend to cost a billion bucks or more... which for a program that already has 9toes arguably in the grave, isn't "biting the bullet," it's suicide.
I disagree on the suicide part. A new wing and wingbox should increase efficiency by about 20%. Maybe more if weight can also be saved elsewhere in the frame. That's without all the strings attached to the 14% offered by the PLUS currently. New engines when ready, should increase efficiency by another 15-20%. So a NEO around 2025 with a new wing could have up to around a 40% increase in efficiency over early A380s. It's likely the only thing to keep the A380 going.
It would make it a lot more attractive to CAS. Not only them but BA, SQ, and maybe even ANA. On top of EK.
20% could also be enough for Qantas and AF to take their remaining birds. I would think 70 sales should be achievable with most going to EK of course. Who have also stated they would make a decent follow on purchase if other Airlines order it. 70 should put a good dent in the cost of a new wing. Especially since the wing box and winglets have now already been worked out. 70 quick sales that is.