Not sure how you guys feel about this but consider the current situation: Airlines are in a dog eat dog world with each other with regards to landing slots and gates at almost every intl airport. I think the a380 will still be around in the future, especially if they come out with a NEO...
We don't have solid numbers to compare with but i can say that its not worth comparing the 747 with the a380, 2 different airplanes introduced in 2 different generations of air travel. Only time will tell, im sure we'll see more a380 orders in the future...