Congratulations to Airbus and British Aerospace for getting it so close.
The wing is supposed to break at ultimate if all of the design is right. That is what ultimate means.
If you build a wing stronger than ultimate then it is too heavy so then you might consider some weight improvement. Trouble with that is - you then may need to repeat all of the fatigue and load testing again.
In this case the fatigue testing may have initiated a small undetected crack which slightly weakened the piece of structure which broke. Simply polishing the surface of that structure at the break point may be enough to guarantee the strength to be above ultimate.
All of you potential A380 pilots should be elated.
A good question begging for an answer is
"What load exceedence spectrum was used for the fatigue testing and for how many equivalent hours of flight time?"