It is soooooo... unrealistic to think that Airbus is going to build a plane "with shops,restaurants..." people,an airplane has a very fragile stability, and pax. should be seated all the time except when really needed (bathroom).
Creating a "flying cruise ship" is just not possible at the moment.
In my opinion, the image of such a mega-plane is invented by media, surely NOT by Airbus or Boeing.
By the way: An airplane has to make the most out of a very little amount of space...