Boeing CEO Jim McNerney said the manufacturer is considering a B737 replacement for around 2020 stating there was a strong argument that the market would wait for a replacement (The Australian, 28-Jan-2011). The company added that re-engining only made sense if a new aircraft was developed in 2025 and beyond and the manufacturer is cautious about putting Boeing's backlog at risk twice and the cost of two development efforts.
Boeing: "Based on what we're learning to date about what our customers need and the new technologies available to us, I think we're leaning towards the development in the 2020 timeframe. But we're going to confirm that as we go through it this year, preserving the option if we're wrong as we go through the analysis, to re-engine. But I don't think it's going to turn out that way," Jim McNerney, CEO. Source: The Australian, 28-Jan-2011.