Just curious about this & if anyone has any insight. In terms of the current A330s (when they are refurbished) & upcoming A330neos. Or will some of them continue to be 2 class only? I just recently used AsiaMiles to upgrade a regional A330 flight's Econ seat to J and was only able to do so as the plane did not have PE (in which case you would have to buy a PE ticket to use miles to upgrade to J).