It would be interesting to see if Airbus can do to the A380 what it did to the A340.
4 hair dryers replaced by 2 real engines, and then again by 2 newer engines. The A340 lives on in the A330neo.
An A380 configured as twin with large nextgen engines that dwarf the GE9X and just slightly less range, burning 25% less fuel.
Everybody will be standing in line to buy some.
No they will not.
Skipping over the technical arguments, the airline industry can find a VLA's worth of passengers that want to go to the same place at the same time but they can't do it on enough routes with enough profit on enough days of the week to enable A380 to thrive.
The fundamental issue isn't the efficiency of the A380 per se (but it of course could use improvement) but it is the structure of demand in the market.
For instance EK said it had no interest in the Plus interior optimizations on their A380s whereas pretty much every other airline is finding they can make more money by cramming in more seats into their aircraft. That tells you that EK's main issue is the number of passengers willing to pay market value for such seats.
If you try to improve the efficiency of the A380 you have to find a way to pay for such improvements. The A380 has removed many of the unknowns about the VLA market. We now know that outfits like MH and TG definitely should not have ordered A380s, AF, QF and LH should not have ordered as many as they did because they didn't take all of their orders etc. The market base for A380 is proven and it is far smaller than the early rosy predictions. The original infrastructure was sized for 48/year, here we are heading towards 6/year. The market base to justify a major spend to improve the A380 just isn't there.
And the technical side makes your idea a non-starter. There is no engine that can provide enough thrust to a two-engined A380, and unlike A330/A340 the design does not allow for a two-engined A380. It'd in essence need to be a clean sheet and there's no market for that right now.
I feel that DL will make a move on used frames, for VS and/or JFK-LHR.
They are all out for blood, you should look at the fares that they're proposing recently on JFK-LHR...
Nonsense. The blood DL would be spilling would be their own. Provide some evidence, or just stop with such stuff.