There are plans to expand the terminal in order to accommodate the increased passengers numbers of the FIFA 2022 World Cup, and to keep up with Qatar Airway's continued passenger growth. The airport handled 34.5 million passengers in 2018 and this is expected to rise to 53 million by 2020. A new central building located between the existing Concourse's D &amp; E will feature a tropical garden with a tall water feature, similar to that found at Singapore Changi airport's Jewel complex. The project will also add of retail and F&amp;B space, and an expanded transfer area. A new Qatar Airways Al Mourjan Business Class Lounge will occupy the mezzanine level, and covering it will be the world's largest airport lounge. In addition concourses D &amp; E will be lengthened to accommodate nine additional wide-body aircraft stands.