Airbus CEO Fabrice Bregier has come up with a strong pledge in favor of continuing the A380 program a day after Airbus Group CFO Harald Wilhelm cast doubts over the program.

“We will get additional customers,” he told the Airbus global investor forum in London. “We are fully booked for the next three years, where is the problem?”. Bregier went as far as saying that Airbus “will one day launch an A380neo and we will one day launch an A380 stretch.” He asked investors to not be “impatient.”

Wilhelm had stated on Wednesday that the program will remain at breakeven or close to it in 2018 on the recurring cost level even if Airbus decided to cancel it. A380 production is sold out for the next three years and the first open slots are available in 2018. For Airbus to deliver the entire A380 backlog, production would have to run much beyond 2018, albeit at reduced rates. The program is currently at 30 aircraft per year.

Airbus Chief Operating Officer Customers John Leahy said the manufacturer is engaged in four sales campaigns with existing customers. He remained somewhat cautious as far as the A380neo is concerned. “The A380neo has to have a strong business case and volume,” he said. Leahy was in Dubai over the weekend to discuss the idea with Emirates Airline President Tim Clark, the one executive in the airline industry pushing the idea the hardest. Leahy said Clark would buy a lot more A380s if the re-engined version was launched.

He is convinced that with global air travel continuing to grow the A380 market “has to grow by definition” although it was “not a gigantic market.”

Airbus has 318 firm orders for the aircraft, 147 A380s have been delivered. Emirates is by far the most important customer with orders for 140. The airline has taken 55 A380s, 85 more are to come.