François Collet, Director at Airbus Asset Management, said via Reuters that any new model would need to achieve at least a 25% improvement in efficiency to justify development costs. However, he noted it is uncertain whether current technology can deliver such gains.

Both manufacturers appear focused on incremental improvements rather than launching entirely new models. The decision to delay clean-sheet narrowbodies maintains the current competitive environment in commercial aviation. Both companies plan to continue selling derivatives of existing models—Airbus A320neo and Boeing 737 MAX—well into the next decade. This approach supports higher pricing and leasing rates due to limited availability.

Airlines are pursuing small efficiency improvements through derivative models instead of major advancements from entirely new designs. This trend slows progress toward decarbonization and keeps fuel costs high relative to overall expenses. Lessors benefit from strong residual values for existing aircraft deliveries and steady placement opportunities. Engine makers are prioritizing reliability and maintenance economics over riskier innovations, which increases potential revenue from aftermarket services.

Aircraft capacity growth remains limited by supply chain constraints and certification processes, contributing to improved yields for manufacturers. Strategically, Airbus continues to offer range advantages with its A321 family while Boeing focuses on stabilizing its product lines with updates like those for the 737 MAX and upcoming 777X models.

In summary, significant changes in commercial aircraft design are likely years away as technology required for next-generation clean-sheet models will not be available soon. Manufacturers remain cautious about undertaking high-risk projects given current market conditions and capital requirements.

As demand shapes investment decisions within the sector, both Airbus and Boeing acknowledge that eventually they will need to develop new aircraft types—but when this will happen remains uncertain.