CG but the real thing (called a
Blended Wing Body, or BWB) will be along in a decade or so. The fuel-saving advantages of the BWB airframe (20% more efficient than traditional designs) and its low noise signature will likely lead to the introduction of BWB airliners within the next 10-15 years. Should war come, it'll make a dandy Air Force tanker/transport (and possibly missile carrier) as well.