It would be a waist of your money/miles to pay anymore to get the A380 specific flight from JFK-CDG-JFK, at least in Business. Very disappointing J seats; AF really wasted an opportunity here IMO. It really isnt anything special at all (besides being large).
P.S. You can see my report of the AF A380 in J here:
http://www.flyertalk.com/forum/trip-...sq-new-af.html