I think Sorvad is right with the exception of JNB seasonally, LHR, and perhaps other slot restricted EU airports such as FRA and CDG. Hence, CX will only need a dozen or less.
B-HKD analysis is spot on and clearly shows the problem with the 380 and its lack of cargo space. The stretch will not help matters because it just adds more passengers from two decks to a single deck of belly space. Pretty simple concept if you think about it as 2 for 1 pax seating to belly space, unless they make a combi like the 400.
Frogman, the A380 is a newer design so it must be better??? Wow, that's deep thinking there. And they let you fly airplanes. Scary.