The green colour shows where and how the Bridge will expand in future

Architects OTCPD already sketched out on behalf of HKIA what this could look like a long time ago: https://www.otcpd.com/projects/airpo...-modifications

And you can imagine the twin levels. Potentially one for first class and the lower section for part of the expanded Bridge plus..:
*the empty space behind the Bridge reception: flooring and support structure is planned to be added to backfill and add space there
*I expect quite a few, if not all the lounges in the upper sections where Thai, EK, Plaza and Chase are now might be kicked out to explain more of the Business and a new First lounge to ensure whatever is lost from The Pier is not just covered at an expanded Bridge but also needs to be much bigger in a 3RS context for greater capacity

That’s why The Wing is expanding to essentially the end of gate 4. Not an easy job