a new extension to the line was announced on 25 may 2019. the new extension will connect the line to singapore changi airport, allowing people arriving from the airport to go to the city without changing to another train. the tracks of the east west mrt line that currently go to the airport will also be used by this extension, which means that trains on the line will go all the way to tanah merah station, and there will be no more east west line trains using these tracks. this extension will open by 2040.