Airbus has not introduced a new aircraft family since the Airbus A350 was launched over ten years ago. Speculation suggests that Airbus might be developing a new widebody design, potentially named the Airbus A390, following its typical naming conventions. However, no official announcements have been made by the company.
The success of the A350 program, with nearly 1,400 orders and over 650 deliveries, indicates that there is no immediate need for Airbus to develop a new widebody family. The A350 covers the 300-400 passenger market effectively and continues to receive orders. Meanwhile, the A330neo serves the 260-310 seat market.
There is speculation about whether Airbus would consider an ultra-high-capacity aircraft or something in the midsize category for any future development. Current engine technology and costs make it unlikely that another quadjet widebody will be developed soon.