A little inside info.
Boeing and BA have both NDTed the wing and it has a clean bill of health. There will need to be a major skin repair forward of the wing on the left side, as the hull was breached at that location.
All apparently do-able, but cost yet to be assessed, which will be the deal maker/breaker as to whether it will be financially viable.
The cost of hangar space to do the work will be a major factor, apparently.