Boeing will brief its board by year-end or early 2013 on potential plans to offer an upgrade to the current version, the company’s commercial airplanes chief, Jim Albaugh, said last month. He said the Chicago-based planemaker expected the new plane to be in service “towards the end of the decade.”
Emirates, the largest customer for the 777, and British Airways, the fifth-biggest, are pushing for a follow-on model to the 777-300 by decade’s end so they can move quickly to replace some of their older planes. Airbus SAS (EAD) is promoting the roomiest version of its A350 as a challenger to the twin-engine 777.
British Airways, a unit of International Consolidated Airlines Group SA, intends to replace 52 Boeing 747 jumbo jets. It is currently evaluating the purchase of a 777 successor, the 787-10 Dreamliner, or possibly A350-1000s, the biggest variant of the Airbus plane.
This will probably end the "Will BA buy 747-8i's/777W's to replace the 747-400's?" question.
Very interesting article.
Emirates Joins British Airways Prodding Boeing on New 777