Malaysia Airlines was studying 787 and A350 as replacements for 777 and A330 from around 2018.

While the MH370 flight search keeps on going, last June/2013 was published that Malaysia Airlines was studying both the Airbus A350 and Boeing 787 as potential replacements for its existing medium and long-haul fleet of aircraft.

Malaysia Airlines operates a total of 14 Boeing 777-200s and 14 Airbus A330-300s, and it eventually wanted to fly only one type of aircraft in this segment to simplify operations and reduce costs, Germal Singh, the airline's senior vice president of government and international affairs, told reporters on the sidelines of an airline conference in Capetown.

It may begin to replace these aircraft from around 2018, he added.

Malaysia Airlines also operates 6 A380s and 61 Boeing 737s.

Based on the article “Malaysia Airlines considers Airbus A350 or Boeing 787” published in The Star