AirAsia declined to comment.
An Airbus spokesman said, "As a leading aircraft manufacturer we are always in talks with our customers about their fleet needs. We keep the content of those talks confidential."
Fernandes - who has spoken in the past of switching to the 787 only to reaffirm support for the A330neo and then raise fresh questions over the Airbus deal - publicly set out a list of conditions for confirming the planes this week.
These included price, performance, engines and advance payments, he said on his Twitter account, before adding: "Or else" in a remark apparently designed to leave open the prospect of reviving interest in the Boeing jet.