In terms of the seating and cabin layout, even if they are nice at first, it will end up the same way as the 747 did. Before too long the airlines will just end up putting more seats in there. In terms of the 1-4 comment, you could say that for pretty much anything. That said, I'm pretty sure that SYD isn't going to renovate their airport because airbus made a huge plan. I've experienced the waits due to a 747. I can't imagine that they'd be like with a 380.