The A380 in J is generally the same as other AF J flights but:
1) The planes are brand spanking new. I couldn't help but notice just how clean looking the interior was - no dirt, grime, smudges on the plastic, etc.
2) The video screens are much bigger. I didn't measure them, but it looked like the video screens were possibly 14 inches or so -- basically the same size as a laptop screen. I'm guessing they are bigger because they are newer. I don't know if other aircraft are going through a refit, but in the last week I flew a A380, A380 and two B777s, and the A380 screens were much much bigger. The other aircraft either had smaller seat-back screens or else the kind the pop up from the armrests.