Interesting. The official QF position is "due to open 31 March 2013. The Qantas Singapore Lounge will feature a new standard of luxury for you to enjoy, and will replace the current Qantas and British Airways First Lounge." It used to be called "Qantas F Lounge" and an upgrade over the old F lounge. Presumably it will now be J branded making it the nicest QF J lounge in the world (?). But then qantas.com still says that the old QF F lounge is closed for construction as the new "QF Sin Lounge" referenced above is being built in its floor space. I suppose it will all be revealed in a few weeks.