SPM made a brilliant point, once the competition flies the A 380 on certain routes, you have to follow, cause they will lower the fares so massively, that either you pull out of the market or you buy the A 380 or come up with something revolutionary...

Generally revenue per seat mile will continue to fall, so operating the most efficient airplane on the most efficient way of operating ( which is still hub and spoke ) is key to success in the future.