Boeing trends towards replacing B737 before updating B777

Boeing VP of Business Strategy and Marketing, Mike Bair, stated the company is leaning towards developing an all-new B737 replacement before moving to improve the B777 family (Bloomberg, 03-Mar-2011). Boeing's new narrowbody aircraft would be wider than the B737 and seat 150-220 and is expected to be ready to enter service on 2019/20. Boeing could then move to develop new wings and fit new engines to the B777.