That’s the question. What will Boeing do? The Airbus A320neo has been a hot seller at the Paris Air Show this year, and even American is said to be in talks with Airbus about buying. (This sounds like an effort to get Boeing off its butt, but that’s just me.) So what will Boeing do? Will it go for a 737 with new engines? An all new 797 to replace the 737? If it wants to keep winning narrowbody orders, it has to do something. The question is . . . what?