In the future, the runway will be extended to 4,000 metres to accommodate further growth in passenger, cargo and air traffic as construction of Terminal 5 gets underway.

[4] As part of Changi Airport's expansion and to accommodate the eventual relocation of Paya Lebar Airbase, the air base was closed for expansion works and re-opened at the end of 2018.

[5] Also, located just beyond the northern edge perimeter fencing of the air base is the permanent venue of the new Changi Exhibition Centre for the Singapore Airshow which was completed in September 2007 and had hosted the recently inaugurated Singapore Airshow 2008 in February 2008.

On 1 November 2011, Singapore hosted the Five Power Defence Arrangements (FPDA)'s 40th-anniversary celebrations, with the defence ministers, aircraft and servicemen from all five signatory countries converging on the air base to participate in the event.

Codenamed Exercise Bersama Lima, the three days joint exercise is expected to test the readiness and cooperation between all participating countries and should conclude on 4 November 2011.