However they go about it a replacement for the A300’s, and 767’s, and a rival for the 7E7 is needed, and I presume that is what Airbus are working on at the moment.
I know, for example that BA are looking to replace their 767’s, and whether they choose the new airbus or the 7E7 is pivotal towards their long haul fleet stratagy over the next 20 years (747/777 replacements)